Question 3

Which one of the following equations does not correctly represent the first law of thermodynamics for the given processes involving an ideal gas? (Assume non-expansion work is zero)

Name: Which one of the following equations does not correctly represent the first law of thermodynamics for the given processes involving an ideal gas? (Assume non-expansion work is zero)
Uploaded: 2026-05-19T14:35:36.207530+05:30
Duration: 3 min 46 s
Description: Which one of the following equations does not correctly represent the first law of thermodynamics for the given processes involving an ideal gas? (Assume non-expansion work is zero)

Solution

Delta U = Q - W.

In a cyclic process the change in internal energy is zero and in isochoric process change in volume is zero hence work is zero. In an Adiabatic process Q = 0.