Question

In a balloon of total pressure 6 atm there is a gaseous composition of 44 grams of carbon dioxide 16 grams of by oxygen and 7 grams of nitrogen, what is the ratio of nitrogen partial pressure do the total pressure in the balloon?

(a) 0.25

(b) 0.5

(c) 0.75

(d) 1

The question was posed to me during an interview for a job.

The above asked question is from States of Matter in portion States of Matter of Chemistry – Class 11

Answer 1

Right option is (a) 0.25

Explanation: The partial pressure of a gas is given by the mole fraction of the gas x the total pressure, so the ratio of the partial pressure to the total pressure is the mole fraction of nitrogen is 7/14 divided by 44/44 + 16/32 2 + 7/14 = 0.25.