Question

In a reversible isothermal process,the change in internal energy is :

• A. zero
• B. positive
• C. negative
• D. None of these

Answer 1

Answer: (A)

zero

Answer 2

$\Delta E =0$ for reversible isothermal process As internal energy is function of temperature. In an Isothermal process the temperature is constant. Hence, the internal energy is constant, and the net change in internal energy is ZERO.