Question

In conversion of lime-stone to lime, $CaCO_3 (s) \rightarrow CaO(s) + CO_2 (g)$ the values of $\Delta H^0$ and $\Delta S^0$ are + 179.1 kJ mol⁻¹ and 160.2 J/K respectively at 298 K and 1 bar. Assuming that $\Delta H^0$ and $\Delta S^0$ do not change with temperature, temperature above which conversion of limestone to lime will be spontaneous is (a) 1118 K (b) 1008 K(c) 1200 K (d) 845 K.

Answer 1

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