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I only need help with part D please. C Chegg.com xy WWN9579: Homework for X Dora

ID: 946642 • Letter: I

Question

I only need help with part D please.

C Chegg.com xy WWN9579: Homework for X Dora Li smartwork.wwnorton.com/sw/mod/smartwork/view.php?id-549946&isStudent-l; Incorre ncorrec The general reaction below has the following standard thermodynamic parameters: .frxn-392 kJ/mol and AS rxn82.5 J/(K mol). Complete parts a, b, c, and d below a. Is the reaction exothermic or endothermic? Endothermic O Exothermic b. Does the positive entropy change make sense? Why or why not? Yes, because order decreases as the number of molecules increase. No, because order increases as the number of molecules increases. No, because order decreases as the number of molecules increases. Yes, because order increases as the number of molecules increases. O O Explanation C Try Again View Solution

Explanation / Answer

Answer – We know at the equilibrium, G = 0 for spontaneous process

So, T = Hrxn / Srxn

          = 39200 J.mol-1 / 82.5 J.mol-1.K-1

          = 475.15 K

the temperature of the reaction becomes spontaneous is 475.15 K