Q 1346191973.     The following equation shows the conversion of limes stone to lime `CaCO_3(s) rightarrow CaO(s) + CO_2(g)`. The values of `Delta H^ circ` and `Delta S^ circ` are `+179.1` kJ 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, minimum temperature above which conversion of lime stone to lime will be spontaneous is

A

`1118` K

B

`1008` K

C

`1200` K

D

`845` K

HINT

Use formula: `Delta G^ circ = Delta H^ circ - T Delta S^ circ`

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