Question

Two moles of an ideal gas undergoes isothermal reversible expression from $2L$ to $8L$ at $300K$. The enthalpy change of the gas is:

• A. $11.4kJ$
• B. $-11.4kJ$
• C. $zero$
• D. $4.8kJ$

Answer 1

The correct option is C $zero$

Solution:- (C) zero

In an isothermal process, since the temperature remains constant, thus the enthalpy change will be $0$.