Q61 / 199 · NEET 2008 (Mains) · Chemistry
Which of the following are not state functions?
(I) $q+w$
(II) $q$
(III) $\mathrm{w}$
(IV) H-TS
- Correct answerA(II) and (III)
- B(I) and (IV)
- C(II), (III) and (IV)
- D(I), (II) and (III)
Solution
$$
\begin{gathered}
\Delta U=q+w \\
\Delta G=\Delta H-T \Delta S
\end{gathered}
$$
$\Delta \mathrm{U}$ and $\Delta \mathrm{G}$ are state functions but $\mathrm{q}$ and w are not state functions.
Hence, the correct answer is option: 'A'.