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Consider the following reaction and the corresponding thermodynamic data to answer the next two problems. CaCO3...

Consider the following reaction and the corresponding thermodynamic data to answer the next two problems.

CaCO3 (s) ( CaO (s) + CO2 (g) (Ho rxn = 179.2 kJ/mol; (So rxn = 160.2 J/mol K

What can be stated regarding the spontaneity of this chemical reaction?

a) This reaction is spontaneous at all temperatures.

b) This reaction is spontaneous above 894K and non-spontaneous below 894 K.

c) This reaction is spontaneous below 894 K and non-spontaneous above 894 K.

d) This reaction is spontaneous above 1119 K and non-spontaneous below 1119 K.

e) This reaction is spontaneous below 1119 K and non-spontaneous above 1119 K.

What is the value of the Gibbs Free Energy change, (Grxn for this reaction at 100 oC?

a) (Grxn = -5.96 x 104 kJ/mol b)

b) (Grxn = 119.4 kJ/mol c)

c) (Grxn = 163.2 kJ/mol

d) (Grxn = 195.2 kJ/mol e)

e) (Grxn = 239.0 kJ/mol

please please please show how to do the problems! i have an answer key but i am trying to prepare for a test and i dont understand.

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