For the Reaction CaCO₃(s)→ CaO(s)+ O₂(g)at 1 Atm Pressure,the Values

question 81

Multiple Choice

For the reaction CaCO₃(s) → CaO(s) + O₂(g) at 1 atm pressure,the values of ΔH and ΔS are both positive,and the process is spontaneous at high temperatures.Which of the following statements about this reaction is true?

• A)The change in entropy is the driving force for the reaction.
• B)The process is exothermic at high temperatures and endothermic at room temperature.
• C)The reverse reaction is endothermic.
• D)The reverse reaction is nonspontaneous at room temperature.
• E)ΔG at room temperature is negative.

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