The Species in the Reaction,
2 KNO₃(s)+ 2 C(s) $\rarr$ K₂CO₃(s)+ N₂(g)+ 3/2 CO₂(g)
Have the Values for Standard Enthalpies

The species in the reaction,
2 KNO₃(s) + 2 C(s) $\rarr$ K₂CO₃(s) + N₂(g) + 3/2 CO₂(g)
Have the values for standard enthalpies of formation at 25 °C:
KNO₃(s) , $\Delta$ H°_f = -492.7 kJ mol^-1
CO₂(g) , $\Delta$ H°_f = -394.0 kJ mol^-1
K₂CO₃(s) , $\Delta$ H^°_f = -1146 kJ mol^-1 Assume that, since the physical states do not change, the values of $\Delta$ H° and $\Delta$ S_{1 atm} = $\Delta$ S° are constant throughout a broad temperature range and use this information to determine which of the following conditions may apply.

A) The reaction is spontaneous at all temperatures.
B) The reaction is non-spontaneous at all temperatures.
C) The reaction is spontaneous at low temperatures but nonspontaneous at hightemperatures.
D) The reaction is nonspontaneous at low temperatures but spontaneous at hightemperatures.
E) It is impossible to make any judgment about spontaneity because insufficient information can be gleaned from the data and equations presented.