MCQ
A naturally occurring substance has the constitution shown below. How many may have this constitution ?


- A$2$
- B$8$
- C$16$
- ✓$64$


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|
List $-I$ (Process) |
List $-II$ (Conditions) |
| $A$. Isothermal process | $I$. No heat exchange |
| $B$. Isochoric process | $II$. Carried out at constant temperature |
| $C$. Isobaric process | $III$. Carried out at constant volume |
| $D$. Adiabatic process | $IV$. Carried out at constant pressure |
Choose the correct answer from the options given below:
$\mathrm{A}(l) \rightarrow 2 \mathrm{B}(\mathrm{g})$
$\Delta \mathrm{U}=2.1\; \mathrm{kcal}, \Delta \mathrm{S}=20\; \mathrm{cal} \mathrm{K}^{-1}$ at $300\; \mathrm{K}$
Hence $\Delta \mathrm{G}$ in $\mathrm{kcal}$ is
