Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Thermodynamics

Question:

A gas is expanded from volume Vo to 2Vo under three different processes. Process 1 is isobaric process, process 2 is isothermal process and process 3 is adiabatic. Let \(\Delta U_1\), \(\Delta U_2\) and \(\Delta U_3\) be the change in internal energy of the gas in these three processes. Then : 

765563

Options:

\(\Delta U_1\) > \(\Delta U_2\) > \(\Delta U_3\)

\(\Delta U_1\) < \(\Delta U_2\) < \(\Delta U_3\)

\(\Delta U_2\) < \(\Delta U_1\) < \(\Delta U_3\)

\(\Delta U_2\) < \(\Delta U_3\) < \(\Delta U_1\)

Correct Answer:

\(\Delta U_1\) > \(\Delta U_2\) > \(\Delta U_3\)

Explanation:

Change in temperature in process 1 will be greater and in process 3 will be last.