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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The appearent charge on an atom wrriten signed followed by thema)oxidation nob)oxidation statec)redox reaction d)valency |
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| 2. |
Conjugated systems tend to absorb in the visible region because...(a) electrons are coloured(b) overlapping pi orbitals increase the energy gap between orbitals(c) overlapping pi orbitals reduce the energy gap between orbitals 1004transmittance occur |
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Answer» For molecules having conjugated systems of ELECTRONS, the ground states and excited states of the electrons are closer in energy than for nonconjugated systems. This MEANS that lower energy light is NEEDED to excite electrons in conjugated systems, which means that lower energy light is absorbed by conjugated systems. |
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| 3. |
K2[Fe(CN)6] is a/an a.double salt b.complex salt c.acid d.base |
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Answer» Answer: b)COMPLEX salt Explanation: Potassium FERROCYANIDE is the inorganic COMPOUND with formula K4[FE(CN)6]·3H2O. It is the potassium salt of the coordination complex [Fe(CN)6]4−. This salt forms lemon-yellow MONOCLINIC crystals. |
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| 4. |
Different between endogenic factors and exogenic factors? |
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Answer» Answer: Endogenic FORCES ORIGINATE from WITHIN the surface of the earth. Exogenic or EXTERNAL forces are the pressure that occurs on or above the earth's surface. |
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| 5. |
In order to form a compound with oxygen, an atom of a Group Il element must |
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Answer» Answer: Oxygen REACTS with hydrogen to produce TWO compounds: ... Oxygen reacts rapidly with GROUP 1 ELEMENTS. ... to its small size and HIGH ionization energy of its atoms. |
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| 6. |
Which of the following is not correct |
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Answer» please give your QUESTION's imformation fully. I can't UNDERSTAND about your PROBLEM in this question. Explanation: |
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| 7. |
A. Identify what is referred to in each number.___1. Cleaning product made by mixing vinegar, lemon and baking soda___2. It is a great scrubber and a kitchen disinfectant___3. Destroys microorganisms that are present in the object.___4. It is completely non-poisonous and bit expensive as compared to other naturaldisinfectants.___5. This can be used to scrub surfaces just like other abrasive cleanser and alsoa good deodorizer. |
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Answer» Disinfects: KILLS 99.9% of GERMS and household bacteria For hard, non-porous surfaces throughout the house Cleans, disinfects and deodorizes in one easy step Cuts tough grease and grime without scrubbing Explanation: I hope it will help you |
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| 8. |
12. परमाणु त्रिज्या तथा आयनिक त्रिज्या किसे कहते है |
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Answer» किसी परमाणु के नाभिक केन्द्र से उसके बाहा इलेक्ट्रॉन कोश के बीच की दूरी को परमाणु त्रिज्या कहते है। किसी आयन के नाभिक से वह प्रभावी दूरी, जितनी दूरी तक आयनिक बन्ध में आयन का प्रभाव होता है, उस आयन की आयनिक त्रिज्या कहलाती है। |
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| 9. |
Boyle temp and inversion temp are related as |
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Answer» Answer: INVERSION temperature is DOUBLE of Boyle's temperature. Boyle temperature is the temperature at which normal gases START to behave like ideal gases( due to the absence of both attractive and REPULSIVE forces at that temperature). hope it HELPS u |
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| 10. |
Who was William Shakespeare?Shizuka here |
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Answer» WILLIAM Shakespeare English PLAYWRIGHT and POET . |
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| 11. |
Relation between Edge length and radius of particle in Body centred Unit cell |
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Answer» The relation between EDGE LENGTH (a) and radius of ATOM (r) for BCC lattice is 3A =4r. |
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| 12. |
Assertion: The IUPAC name of H & CH, @_CHOH is 2-Bromo-3-methyl-pent-2-en-1-ol.CH, BrReason: -OH functional group is preferred over halogen as well as double bond. Prefixes of groupsare written alphabetically. |
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Answer» Answer: this reason is OS function group is preferred over hello Jin as well as double BOND EFFECTS of group as writer nelluvai and this answer is 2 - 3 and -1 |
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| 13. |
In ethyne how many carbon and hydrogen atoms are present. |
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Answer» Answer: I I HOPE it will help you please follow me |
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| 14. |
Which of the following factor is responsible for a change in state of matter?1- volume2- viscosity 3- shape 4- temperature |
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Answer» |
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| 15. |
Explain hydrogen spectrum based on Bohr's atomic model |
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Answer» Answer: NIELS Bohr explained the line spectrum of the HYDROGEN atom by assuming that the electron moved in CIRCULAR orbits and that orbits with only certain radii were allowed. ... The ORBIT closest to the NUCLEUS represented the ground state of the atom and was most stable; orbits farther away were higher-energy excited states Explanation: |
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| 16. |
What is the oranganic mercury |
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Answer» ORGANIC mercury is something with is formed when the mercury GETS COMBINED with carbon. Explanation: hope u find it helpful |
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| 17. |
Happy news, Our national anthem "Jana Gana Mana... "is declared as the "BEST ANTHEM OF THE WORLD"by UNESCO. Just few minutes ago.Kindly share this. Very proud to be an INDIAN.✨✨ Meaning of our National Anthem ✨✨Please try to understand the meaning and pronounce it clearly.Word by word meaning..Jana = PeopleGana = GroupMana = MindAdhinayaka= LeaderJaya He = Victory Bharata = IndiaBhagya = DestinyVidhata = DisposerPunjaba = PunjabSindhu = IndusGujarata = GujaratMaratha = Marathi MaharashtraDravida = SouthUtkala = OrissaBanga = BengalVindhya =VindhyasHimachal =HimalayYamuna = YamunaGanga = GangesUchchhala = MovingJaladhi = OceanTaranga = WavesTava = YourShubh =AuspiciousNaame = nameJage = AwakenTava = YourShubha = AuspiciousAashisha = BlessingsMaage = AskGaahe = SingTava = YourJaya = VictoryGatha = SongJana = PeopleGana = GroupMangala = FortuneDayaka = GiverJay He = Victory BeBharata = IndiaBhagya = DestinyVidhata = DispenserJay He, Jay He, Jay He, Jay Jay Jay Jay He = Victory, Victory, Victory, Victory Forever...jPLEASE SHARE IT AND LET ALL PEOPLE KNOW THE MEANING OF OUR NATIONAL ANTHEM.. |
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Answer» I just googled it but it's SHOWING that it's fake news... : ( Thanks for SHARING this valuable INFORMATION..... |
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| 18. |
Arrange them in incresing order of atomic radius al+3 , mg+, na+,f-, o-2, N-3, Ne |
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| 19. |
Element X and Y belong to group 1 and 17 of the periodic table respectively. What will be the natureof the bond in the compound XY? What is the solvent used to dissolve compound XY?pls tell as possible as fast.. I will mark you as brainliest.. |
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Answer» solution : Group 1 elements are metals, so element X is a METAL. Group 17 elements are non -metals, so element Y is a non -metal. ... So the bond in XY will be an ionic bond (Give the two PROPERTIES of ionic compounds yourself) EXPLANATION: make me brainliest pld |
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| 20. |
What is the nature of the solution which turns red litmus blue and methyl orange yellow |
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Answer» Answer: basic nature |
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| 21. |
An Organic compound contains 61% carbon and 11.88% Hydrogen. Find its empiricalformula find its molecular formula if its vapour density is 59 |
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Answer» Answer: hi MARK as brainlylist and follow me |
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| 22. |
The volume of a certain mass of a gas was found to be 500cc whenthe pressure was 800 mm Hg. If the pressure is decreased by 25%. Findthe new volume of a gas. Temperature is kept constant |
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| 23. |
Ar11. Which is most basic among the following :-(1) CH3NH2(2) CH_CH_NH2(3) NH3(4) (CH)2CHNH2GC0009Z:\NODEO BONO BA TARGDICH61E |
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| 24. |
A 40 kg block accelerates by force of 200N. acceleration of the block is 3 m/s^2 determine the magnitude of friction force fg experienced by the block |
Answer» Given :Mass of block = 40kg Applied force = 200N Acceleration of the block = 3m/s² To Find :Magnitude of friction force EXPERIENCED by the block. Solution :❒ As per newton's second law of motion, force is measured as the product of mass and acceleration. Mathematically, F = m × a
We can use this formula only when friction is absent. In this QUESTION, friction force OPPOSES the forward motion. Therefore the equation will be,
where f denotes friction force By substituting the given values; ➙ F - f = ma ➙ 200 - f = (40)(3) ➙ 200 - f = 120 ➙ f = 200 - 120 ➙ f = 80 N |
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| 25. |
1. Which of the following is true for all metals?a. They are hard solids.c. They have 1-3 valence electrons.b. They have high melting and boiling points.d. They are malleable and ductile. |
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Answer» cgmxgmhxhlzglzglztlRK |
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| 27. |
if an element contains two shells only and its outer shell contains five electrons then to which group the element belongs in the periodic table . Name the element . predict is period |
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Answer» Answer: PERIOD = 2 Group = 15 this is your answer |
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| 28. |
Give an example of ring-chain tautomerism. |
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Answer» Answer: example of ring–chain tautomerism frequently described in the literature is the MOLECULE warfarin. Warfarin has been titled an environment-dependent molecular switch,45 for which 11 TAUTOMERS have been identified experimentally MARK me as BRAINLIEST. |
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| 29. |
2.20Explain periodicity in Atomic radius |
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Answer» Answer: ATOMIC radius is determined as the distance between the nuclei of two identical atoms bonded TOGETHER. The atomic radius of atoms GENERALLY decreases from left to right across a period. The atomic radius of atoms generally INCREASES from top to bottom within a group. |
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| 30. |
Calculate the number of moles in 63.0 g of magnesium carbonate? |
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Answer» Explanation: We assume you are converting between grams MgCO3 and mole. You can view more details on each MEASUREMENT unit: molecular weight of MgCO3 or mol This compound is also known as Magnesium Carbonate. The SI BASE unit for amount of substance is the mole. 1 grams MgCO3 is equal to 0.011860440567925 mole. Note that rounding errors may OCCUR, so ALWAYS check the results. Use this PAGE to learn how to convert between grams MgCO3 and mole. Type in your own numbers in the form to convert the units! |
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| 31. |
Units of equilibrium constant??plz give me thanks |
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Answer» Answer: Units of Equilibrium Constant Equilibrium constant being the ratio of the CONCENTRATIONS raise to the stoichiometric COEFFICIENTS. Therefore, the UNIT of the equilibrium constant = [Mole L-1]△n. where, ∆n = sum of stoichiometric coefficients of PRODUCTS – sum of stoichiometric coefficients of reactants. Explanation: GOOD |
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| 32. |
What is the chemical equation of when pent-1-ene and bromine reacts |
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Answer» Answer: |
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| 33. |
why 2'2 dimethyl. propane is more stable than the n-pentane?(please answer this question according to fsc level) |
Answer» Words related to onlineAccording to the algorithm that drives this word similarity engine, the top 5 related words for "INTERNET" are: world wide WEB, computer network, cyberspace, GOOGLE, and web browser.Explanation: (◍•ᴗ•◍)(◠‿◕)(◠‿◕) |
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| 34. |
Write an experiment on seperation of oxygen from H2O2 |
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Answer» When hydrogen peroxide (H2O2) is exposed to light it DECOMPOSES to form WATER and OXYGEN. |
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| 35. |
Difference between acidic oxides and basic oxides(reaction with litmus) |
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Answer» ACIDIC oxides in aqueous solutionreacts with BASE solutions to FORM corresponding salt and WATER where as basic oxides by reacting with acids solution to give salt and water In both the cases of neutralisation basic oxides contribute basic radical or cation and acids contribute acid radical or anion of the salt and vice versa moist Acidic oxides TURN blue litmus into red whereas moist basic oxides turn red litmus into blue 219 viewsView Sharers Srinivas Ramreddy, senior lecturer at Ace Creative Learning Private Limited (2015-present) Answered December 22, 2016 Originally Answered: Difference between acidic and basic oxides? Hope this is helpful for you Please give a like |
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| 36. |
The dual character of wave and particle of the electron was suggested by |
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Answer» Answer: PRINCE Louis-Victor de Broglie if i am not wrong hope this HELPS you |
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| 37. |
The symbols of sodium is |
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Answer» NA - sodium Explanation: MARK me BRAINLIEST |
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| 38. |
Name the intrusive rocks |
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Answer» Here's Your Answer Explanation: Intrusive rocks are formed from magma that cools and solidifies within the crust of the planet. When lava comes out of a volcano and solidifies into extrusive igneous rock, also called volcanic, the rock cools very quickly.Examples of intrusive igneous rocks are diabase, diorite, gabbro, GRANITE, PEGMATITE, and PERIDOTITE. |
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| 39. |
a mixture of ozone and oxygen containing 20 percent of volume of ozone diffuse through plug in 172 sec and oxygen took 164 sec. calculate molecular weight of ozone |
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Answer» how ho KB RD KON din E jb jb k Explanation: meow Ed uyhe e ejdjek |
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| 41. |
What is the paths tool used to |
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Answer» The paths tool is used to CREATE GEOMETRICAL FIGURES. |
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| 42. |
What happens when a gas obtained by the action of dilute H2SO4 on ferrous sulphide is passed through acidified solution of potassium dichromate? |
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Answer» Answer: SULFUR dioxide react with POTASSIUM dichromate and sulfuric acid SO2 + K2Cr2O7 + 3H2SO4 → K2SO4 + Cr2(SO4)3 + 3H2O Sulfur dioxide react with potassium dichromate and sulfuric acid to produce potassium sulfate, chromium(III) sulfate and WATER and the SOLUTION TURNS from orange to green. Hope it helps... |
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| 43. |
Difference btw extensive properties and Intensive properties??¿? NO SPAMS XXX |
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Answer» Answer: here's ur answer dude Explanation: Extensive properties, such as MASS and volume, depend on the AMOUNT of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. PHYSICAL properties can be measured without CHANGING a substance's CHEMICAL identity.hope it helps |
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| 44. |
Which of the following is used as an antacid? |
Answer» EXAMPLES of ANTACIDS include: Aluminum hydroxide gel (Alternagel, Amphojel) Calcium carbonate (Alka-Seltzer, TUMS) MAGNESIUM hydroxide (Milk of Magnesia)please mark my Brainliest |
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| 45. |
4. Do not bring anynear hydrogen as the gas is explosive in nature. |
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Answer» omggggggggggggggg Explanation: sorryyyyyyyyyyyyyyyyyyyy |
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| 46. |
A State your observation : Calcium hydroxide is heatedwith ammonium chloride crystals. |
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Answer» When calcium hydroxide reacts with ammonium CHLORIDE, AMMONIA gas is LIBERATED. Ammonia is a pungent smelling gas and is ALKALINE in nature. |
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| 47. |
The 4 Hº (N2O5, g) in kJ mol- on the bases of the following data is :2NO(g) + O2(g) 2NO, (9)4H-114 kJ mot4NO2 (g) + O2(g) 2,0 (0)AH--102.6 kJ moltA, Hº (NO,g) = 90.2 kJ mol-1(1) 15.1(2) 302(3) - 36.2(4) none of these |
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Answer» Explanation: FOREWORD. The two EARLIEST of the nine main DIVISIONS of English LITERATURE are by far the longest—taken together are longer than all the others combined—but we shall pass RATHER RAPIDLY over them. |
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| 48. |
An electromagnetic radiation has wave length 4800 amstrom. calculate the its frequency |
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Answer» Answer: 2.083 MHz Explanation: GIVEN wavelength. we know that FREQUENCY = 1/wavelength. frequency = 1/(4800*10^-10) = 10⁸/48 = 2083333.33 Hz. = 2.083 MHz |
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| 49. |
What is x-ray scattering effect |
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Answer» Explanation:
Explanation:
Plse ask the question in English. are you want answer MEANS Plse try this APP and USE referral CODE you got 200 coins and here teach all of subjects and you unlock any chapter and asking doubts and join in telegram for doubt solving and you use referral code means you got 200 coins and you are preparing for neet or neet and it is very useful |
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| 50. |
Give the statement of Charlie's law. derive Charlie's law. |
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Answer» Answer: Derivation of CHARLES Law Derivation of Charles LawIn this, the value of k DEPENDS on the pressure of the gas, the amount of the gas and also the unit of the volume. ... ACCORDING to Charles' Law which states that the volume (V) of the gas is DIRECTLY proportional to its temperature (T) which must be in Kelvin. |
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