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At 10^@C, the osmotic pressure of urea solution was formed to be 500 mm. The solution is diluted 'x' times and the temperature raised to 25^@C when the osmotic prssure was noticed to be 105.3mm, then 'x' is

At 10^@C, the osmotic pressure of 1% (w/v) solution of 'X' is 7.87 xx 10^(4) Nm^(-2). What is the molecular weight of solute X ?

At 1090K, K_(p) for the reaction CO_(2)(g) +C(s) rarr 2CO(g) is 10 atm, At the constant temperature ,Equilibrium position will shift, when pressure change occurs. In the above Equilibrium reaction, partial pressure of CO_(2) of equilibrium :

At 1090K, K_(p) for the reaction CO_(2)(g) +C(s) rarr 2CO(g) is 10 atm, At the constant temperature ,Equilibrium position will shift, when pressure change occurs. In the above reaction, if we use catalyst. Equilibrium constant value :

At 1090K, K_(p) for the reaction CO_(2)(g) +C(s) rarr 2CO(g) is 10 atm, At the constant temperature ,Equilibrium position will shift, when pressure change occurs. In the above reaction, at what total pressure will the gaes analyse 8% CO_(2) by volume ?

At 100^(@)C the K_(w) of water is 55 times its value at 25^(@)C. What will be the pH of neutral solution (log 55 = 1.74)

At 100^(@)C the vapour pressure of a solution of 6.5 gm of a solute in 100 g water is 732 mm. If K_(b)=0.52, the boiling point of this solution will be :

At 100^(@)C the vapour pressure of a solution of 6.5 g of a solute in 100 g water is 732 mm. If K_(b)=0.52, the boiling point of this solution will be

At 100^(@)C the vapour pressure of a solution of 6.5 g of a solute in 100 g water is 732 mm. If Kb = 0.52, the boiling point of this soltuion will be

At 100^(@)C, K_(w)=10^(-12), pH of pure water at 100^(@)C will be

At 100^@C, copper (Cu) has FCC unit cell structure with cell edge length of x Å. What is the approximate density of Cu (in g cm^(-3))at this temperature ? [Atomic Mass of Cu = 63.55 u]

At 100^(@)C and 1 atm pressure the density of water vapour is 0.0005970 g/cc. (a) What is the molar volume and how does this compare with ideal gas value ? (b) What is the compressibility factor 'Z' ?

At 100^@C and 1 atm, if the density of liquid water is 1.0 g cm^(-3), and that of water vapour is 0.0006 g cm^(-3) , then the volume occupied by water molecules in one litre of stream at that temperature is :

At 100^(@)C and 1 atm, if the density of liquid water is 1.0 g/cc and that of water vapour is 0.0006 g/cc, then the volume occupied by water molecule in one litre of steam at that temperature is

At 1000^(@)C, Zn_((s)) +(1)/(2)O_(2(g)) to ZnO_((s)), DeltaG^(@)=-360 KJ "mol"^(-1) C_((s)) + (1)/(2)O_(2(g)) to CO_((g)),DeltaG^(@) =-460 KJ "mol"^(-1) The correct statement is

At 1000 K water vapour at 1 atm, has been found to be dissociated into H_2 and O_2 to the extent of 3xx10^(-5)%. Calculate the free energy decrease of the system, assuming ideal behaviour.

At 1000 k , the pressure of iodine gasis found to be 0.112 atm due to partial dissociation of I_2 (g) into I. Had there been no dissociation , the pressure would have been 0.074 atm. Calculate the value of K_p for the reaction, I_2 (g) hArr 2I(g)

At 100^@ C the vapour pressure of a solution of 6.5 gm of a solute in 100 gm of water is 732 mm. If K_b = 0.52, the boiling point of this solution will be

At 10^(@) C, the average osmotic pressure of blood is 8.8 atm. Find the concentration of the various constituents in the blood. Assuming that the concentration is the same as the molarity. Find the freezing point of the solution (K_(f) " for water " = 1.86 K" kg mol"^(-1))

At 0^(@)C and 1 atm pressure, the relative amounts of water and ice remain unchanged with time in the equilibrium water

At 0^(@)C and 1 at pressure, why is the equilibrium established between water and ice regarded as dynamic in nature?

Asymmetric carbon atom.

Asthma patients used a mixture of…….. For respiration:

Asthma patient use a mixture of.......fo respiration

Astatine is the element below iodine in the group 17 of the periodic table. Which of the following statements (s) is ( are ) true for astatine ?

Astatine is a

Astatine is the element below iodine in the group 17 of the periodic table. Which of the following statement is not true for Astatine?

Assuming the velocity be same, which sub-atomic particle possesses smallest de Broglie wavelength:

Assuming the formation of an ideal solution, determine the boiling point of a mixture containing 1560 g benzene (molar mass = 78) and 1125 g chlorobenzene (molar mass = 112.5) using the following against an external pressure of 1000 torr.

Assuming the degree of ionization to be equal, the ratio of osmatic pressures of equimolar solution of A1_(2)(SO_(4))_(3),Na_(3)PO_(4) and K_(4)[Fe(CN)_(6)]is

Assuming the compounds to be completely dissociated in aqueous solution, identify the pair of the solutions that can be expected to is isotonic at the same temperature.

Assuming the compounds to be completely dissociated in aqueous solution, identify the pair of the soltions which can be expected to be isotonic at the same temperature ?

Assuming the age of the earth to be 10^(th) years , if the percentage of original amount of U^(238) still in existance on earth is x% (nearly) (t_(1//2) of U^(238) is 4.5 xx 10^(9) years) . Then 'x/10' is ____

Assuming that water vapour is an ideal gas, the internal energy (DeltaU) when 1 mol of water is vapourised at 1 bar pressure and 100^(@)C, (Given : Molar enthalpy of vapourization of water at 1 bar and 373 K = 41 kJ mol^(-1) and R = 8.3 J mol^(-1)K^(-1)) will be

Assuming that water vapour is an ideal gas, the internal energy change (DeltaU) when 1 mol of water is vapourised at 1 bar pressure and 100^(@)C, (Given : Molar enthalpy of vapourisation of water at 1 bar and 373K=41kJmol^(-1)andR=8.3Jmol^(-1)K^(-1)) will be -

Assuming that sea water is and aqueous solution of NaCI, its density is 1.025 g/mL at 20^(@)C and NaCI concerntration is 3.5% (by mass). The normality of sea water is :

Assuming that polymerisation of (I) takes place in the manner similar to its dimerisation, then the structure of polymer (III) can be correctly represented as

Assuming that petrol is octane (C_(8)H_(18)) and has a density of 0.8g Ml^(-1), 1,425 litre of petrol on combustion will consume:

Assuming that Raoult's Law is followed, what wolud be the vapour pressue of a solution formed when 40 g of sugar density is 1g/mL.

Assumingthatpetrol is octane (C_(8)H_(16)) and has density 0.8 g/ml., 1.425 liters of petrol on completecombustion will consume

Assuming that elements are formed to complete the seventh period, what would be the atomic number of the alkaline earth metal of the eighth period?

Assuming that energy of activation for most of the reactions is 52 kJ, what conclusion you draw about the effect of temperature on the rate of a reaction ? (Based on Arrhenius equation)

Assuming that a constant current is delivered, how many kW-h of electricity can be produced by the reacation of 1.0 mole Zn with Cu^(2+) ion in a Daniel cell in which all the concentration remains 1.00 M ? (E_(Zn//Zn^(2+))^(@) = 0.76 V , E_(Cu//Cu^(2+))^(@) = -0.34 V)

Assuming that 50% of the heat is useful, how many kg of water at 15^@Ccan be heated to 95^@Cby burning 200 litres of methane at NTP? DeltaH_("combustion") (CH_4) = 211 kcal/mole, sp. heat of water = 1 kcal/kg K.

Assuming Rydberg constant (R_(H)) to be 109670 cm^(- 1), the longest wavelength line in the Lyman series of the hydrogen spectrum is

Assuming petrol is isooctane (C_8 H_18) and has a density of 0.8 g mL^(-1) 1.425 litres of petrol on complete combustion will consume