In a cylinder of pressure 1 bar, there is the hydrogen of 20 grams and neon of 50 grams, what is a partial pressure of hydrogen?(a) 0.2(b) 0.8(c) 0.4(d) 0.6I have been asked this question during an online exam.I want to ask this question from States of Matter in portion States of Matter of Chemistry – Class 11

In a cylinder of pressure 1 bar, there is the hydrogen of 20 grams and

1.	In a cylinder of pressure 1 bar, there is the hydrogen of 20 grams and neon of 50 grams, what is a partial pressure of hydrogen?(a) 0.2(b) 0.8(c) 0.4(d) 0.6I have been asked this question during an online exam.I want to ask this question from States of Matter in portion States of Matter of Chemistry – Class 11
Answer» The correct choice is (b) 0.8 For explanation: As we KNOW that the PARTIAL PRESSURE of a gas is the product of its mole FRACTION and the total pressure of the gases present,so here the partial pressure of hydrogen is 10/10 + 2.5 = 0.8. Mole fraction is given by the number of moles of REQUIRED as per the total number of the gas moles.

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