Question

Exercise 17.62 Consider the following reaction: CaCO3(s)→CaO(s)+CO2(g). Estimate ΔG∘ for this reaction at each of the following temperatures. (Assume that ΔH∘ and ΔS∘ do not change too much within the given temperature range.)

Part A 285 K ΔG∘ = 134   kJ   SubmitMy AnswersGive Up Correct Part B 1095 K ΔG∘ =   kJ   SubmitMy AnswersGive Up Part C 1475 K ΔG∘ = −50.9   kJ   SubmitMy AnswersGive Up Incorrect; Try Again; 5 attempts remaining Part D Predict whether or not the reaction in part A will be spontaneous at 285 K . Predict whether or not the reaction in part A will be spontaneous at 285  . spontaneous nonspontaneous SubmitMy AnswersGive Up Part E Predict whether or not the reaction in part B will be spontaneous at 1095 K . Predict whether or not the reaction in part B will be spontaneous at 1095  . spontaneous nonspontaneous SubmitMy AnswersGive Up Part F Predict whether or not the reaction in part C will be spontaneous at 1475 K . Predict whether or not the reaction in part C will be spontaneous at 1475  . spontaneous nonspontaneous SubmitMy AnswersGive Up Help with these please

Answer 1

- 393.5 313.6 2.88 39.5 Caco s 10 Cao cs) 3 S wnud the abeve valur m our valve Kinnd At 1035 K △H CaCO AS CaCO 3 3945丁|vnelk + 313 เ JIw4H K-g2.gg Jlwolk. At 1o95 K

For a reaction to be spontaneous delta G should be negative

Part D: In part A delta G is positive therefore, the process is non spontaneous.

Part E: In part B delta G is positive therefore, the process is non spontaneous.

Part F: In part C delta G is negative therefore, the process is spontaneous.