If during an isothermal process certain gas is expanded from `V_(1)` to `V_(2)` . Then, which of the following would be true?

Options

A. during expansion temperature of the gas remains fixed
B. internal energy of the gas remains fixed
C. enthalpy of the gas remains fixed
D. entropy of the gas remains fixed

Answer

A

Explanation

During an isothermal process T remain always constant irrespective of nature of the system i.e. ideal gas, nonideal gas, solid or liquid.