Question

For which process does $\Delta U=0$ holds true?

• A. cyclic pocess
• B. isothermal expansion
• C. isochoric process
• D. adiabatic process

Answer 1

Answer: (A), (B)

The correct options are
A cyclic pocess
B isothermal expansion

As $U$ is a state function and it depends upon temperature only so $U=0$ for the cyclic and isothermal process.