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Under which temperature conditions (high or low) is the following reaction spontaneous? explain your answer. CaCO3...

Under which temperature conditions (high or low) is the following reaction spontaneous? explain your answer. CaCO3 (s) --> CaO (s) + O2 (g)

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Answer #1

Change in number of gaseous mole = 1

Hence the entropy of the reaction is positive

Hence Delta G will be negative for high values, hence the reaction will be spontaneous at high temperature, since gibbs free energy will become more and more negative at higher temperature

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