Consider the following reaction: CaCO3(s)CaO(s)+CO2(g) Estimate G for this reaction at each of the following temperatures. (Assume that H and S do not change too much within the given temperature range.) 1045K Predict whether or not the reaction in part B will be spontaneous at 1045K. spontaneous nonspontaneous Predict whether or not the reaction in part C will be spontaneous at 1400K. spontaneous nonspontaneous