Question

13. What would have happened to the gas if the molecular collisions were not elastic?​

Answer 1

Answer:

Then, they would gradually lose up all of their kinetic energy and their movement, after some time will become zero, I. e. they would come at rest...

Answer 2

Elastic collisions are those collisions in which both momentum and kinetic energy of the system under collision are conserved. If the collisions between the gas molecules were not elastic, the energy would have transformed into some other form of energy and would have dissipated .

Moreover the pressure of the gas will also get lowered , if the collisions are not elastic.