Q. The internal energy of the gas increases in
A) Adiabatic expansion
B) Adiabatic compression
C) Isothermal expansion
D) Isothermal compression
Explanation
(b) In adiabatic process $\mathrm{\Delta}U = - \mathrm{\Delta}W$. In compression $\mathrm{\Delta}W$ is negative, so $\mathrm{\Delta}U$ is positive $i.e.$ internal energy increases
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.