Question:-
The internal energy of a gas obeying van der Waals equation {p + (a/v2)}(v-b) = RT depends on its
Option (A)
Temperature
Option (B)
Temperature and pressure
Option(C)
Temperature and specific volume
Option(D)
Pressure and specific volume
Correct Option:
(C)
Question Solution:
Change in internal energy, U = f(T,V)
du = (U/T)v dT + (U/V)T dv
du = CvdT + [T-(U/v)v - P]dv
question-answer-faq-6119