Q. First law of thermodynamics is given by
A) $dQ = dU + PdV$
B) $dQ = dU \times PdV$
C) $dQ = (dU + dV)P$
D) $dQ = PdU + dV$
Explanation
(a) $\mathrm{\Delta}Q = \mathrm{\Delta}U + \mathrm{\Delta}W$ and $\mathrm{\Delta}W = P\mathrm{\Delta}V$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.