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At $300 \mathrm{~K}, \mathrm{PCl}_{5(g)} \rightleftharpoons \mathrm{PCl}_{3(g)}+\mathrm{Cl}_{2(g)}$ and $K_p=1.8 \times 10^{-7}$. Then calculate its $\Delta G^0$.

ChemistryThermodynamics (C)AP EAMCETAP EAMCET 2020 (07 Oct Special)

Options:

A $38.72 \mathrm{~kJ} \mathrm{~mol}^{-1}$
B $44.80 \mathrm{~kJ} \mathrm{~mol}^{-1}$
C $80.80 \mathrm{~kJ} \mathrm{~mol}^{-1}$
D $45.80 \mathrm{~kJ} \mathrm{~mol}^{-1}$

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