Question

Which of the following relation is not correct?

• A. $\Delta H=\Delta U-P\Delta V$
• B. $\Delta U=q+W$
• C. $\Delta S_{\text{sys }}+\Delta S_{\text{surr }}\ge 0$
• D. $\Delta G=\Delta H-T\Delta S$

Answer 1

Answer: (A)

If $U+Pv$ (By definition)
$\Delta 14=\Delta U+\Delta (\text{Pr})$ at constant pressure
$\Delta H=\Delta U+P\Delta V$