Q. During an adiabatic expansion of 2 moles of a gas, the change in internal energy was found $- 50J$. The work done during the process is
A) Zero
B) $100J$
C) $- 50J$
D) $50J$
Explanation
(d) For adiabatic forces $\mathrm{\Delta}W = - \mathrm{\Delta}U\ \ \lbrack\because\mathrm{\Delta}Q = 0\rbrack$
$\Rightarrow \mathrm{\Delta}W = - ( - 50) = + 50J$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.