Question:
Enthalpy of sublimation of iodine is $24 \mathrm{cal} \mathrm{g}^{-1}$ at $200^{\circ} \mathrm{C}$. If specific heat of $\mathrm{I}_{2}(\mathrm{~s})$ and $\mathrm{I}_{2}$ (vap) are $0.055$ and $0.031 \mathrm{cal} \mathrm{} \mathrm{g}^{-1} \mathrm{~K}^{-1}$ respectively, then enthalpy of sublimation of iodine at $250^{\circ} \mathrm{C}$ in cal $g^{-1}$ is :
Correct Option: , 4
Solution: