Question

Which of the following assumption explains great compressibility of gases?

(a) the actual volume of the gas molecules is negligible

(b) there is no force of attraction

(c) particles are always in random motion

(d) different particles have different speeds

I had been asked this question in an interview for job.

This interesting question is from States of Matter topic in portion States of Matter of Chemistry – Class 11

Answer 1

Right choice is (a) the actual volume of the gas molecules is negligible

For explanation: Gas molecules are considered as point masses because the actual volume of gas molecules is negligible when compared to the space between them, so this assumption explains the greater compressibility of gases.