Question

The relationship between enthalpy change at constant pressure( $\Delta$ H) and internal energy change ( $\Delta$E) for a system is given by

• A. $\Delta H=\Delta E+P\Delta V$
• B. $\Delta H=\Delta E-P\Delta V$
• C. $\Delta H=\Delta E+PV$
• D. $\Delta H=\Delta E+RT$

Answer 1

The correct option is A $\Delta H=\Delta E+P\Delta V$

$\Delta H=\Delta E+P\Delta V$
or
$\Delta H=\Delta E+\Delta n_{g}RT$

$P\Delta V=\Delta n_{g}RT$