43. Calculate the change in Gibbs free energy for each of the sets of AHxn, ASxn, and T given in Problem 41. Predict whether or not each reaction is spontaneous at the temperature indicated. (Assume that all reactants and products are in their standard states.)

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Bunny GreenfelderLv2

15 Dec 2017

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44. Calculate the change in Gibbs free energy for each of the sets of AH xn, ASxn, and T given in Problem 42. Predict whether or not each reaction is spontaneous at the temperature indicated. (Assume that all reactants and products are in their standard states.)

42. Given the values of AHxn, ASxn, and T, determine ASunty and predict whether or not each reaction is spontaneous. (Assume that all reactants and products are in their standard states.) a. AHix = -95 kJ; ASix = -157J/K; T = 298 K b. AHix = -95 kJ; ASix = -157J/K; T = 855 K C. AHxn = +95 kJ; ASix = -157J/K; T = 298 K d. AHX = -95 kJ; ASXn = +157J/K; T = 398 K

41. Given the values of AHix, ASixn, and T, determine Asuniv and predict whether or not each reaction is spontaneous. (Assume that all reactants and products are in their standard states.) a. AHix = +115 kJ; ASXn = -263J/K; T = 298 K b. AHix = -115 kJ; ASXn = +263J/K; T = 298 K c. AHix = -115 kJ; ASIX = -263J/K; T = 298 K d. AHix = -115 kJ; ASix = -263J/K; T = 615 K