Question

At constant volume temperature is increases, then ___________

(a) Collisions on walls will be less

(b) Number of collisions per unit time will increase

(c) Collisions will be in straight line

(d) Collisions will not change

I got this question in an internship interview.

Enquiry is from Gases in section Kinetic Theory of Gases of Engineering Physics I

Answer 1

Right answer is (b) Number of collisions per unit time will increase

To elaborate: As the temperature increases, the average molecular velocity increases. This increases collisions frequency.