Question

Under which of the following conditions is the relation $\Delta H=\Delta E+P\Delta V$ valid for a closed system?

• A. Constant pressure
• B. Constant temperature
• C. Constant temperature and pressure
• D. Constant temperature, pressure and composition

Answer 1

The correct option is A Constant pressure

At constant pressure,
$\Delta p=0$
$\therefore \Delta H=\Delta E+p\Delta V$ is valid.