Q. During adiabatic expansion of 10 moles of a gas, the internal energy decreases by 50 J. Work done during the process is
A) +50 J
B) $- 50$ J
C) Zero
D) Cannot say
Explanation
(a) In adiabatic expansion, $dQ = 0$,
$\therefore dW = - dU = - ( - 50\ J) = 50\ J$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.