MCQ
The correct equation for the change in enthalpy is:
- ✓$\Delta H =\Delta U + p \Delta V$
- B$\Delta H =\Delta U + n \frac{p}{V}$
- C$\Delta H =\Delta U +\frac{p}{V}$
- D$\Delta H=\Delta U+T \Delta V$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$CaCO _{3}( s ) \rightarrow CaO ( s )+ CO _{2}( g )$ the values of $\Delta H ^{\circ}$ and $\Delta S^{\circ}$ are $+179.1 kJ mol ^{-1}$ and $160.2\,J / K$ respectively at $298 \,K$ and $1 \,bar$. Assuming that $\Delta H ^{\circ}$ and $\Delta S ^{\circ}$ do not change with temperature, temperature above which conversion of lime-stone to lime will be spontaneous is ........... $K$