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Part A H for the following reaction 2SO2(g)+O2(g)2SO3(g) Express your answer usi

ID: 910483 • Letter: P

Question

Part A H for the following reaction 2SO2(g)+O2(g)2SO3(g) Express your answer using one decimal place. H = -197.8 kJ SubmitMy AnswersGive Up Correct Significant Figures Feedback: Your answer 197 kJ was either rounded differently or used a different number of significant figures than required for this part. Part B S for this reaction. Express your answer using one decimal place. S = J/K SubmitMy AnswersGive Up Incorrect; Try Again; 4 attempts remaining Part C From the values of H and S, calculate G at 25 C. Express your answer using one decimal place. G = kJ SubmitMy AnswersGive Up Part D Predict whether this reaction is spontaneous under standard-state conditions. Predict whether this reaction is spontaneous under standard-state conditions. spontaneous under standard-state conditions nonspontaneous under standard-state conditions SubmitMy AnswersGive Up Part E H for the following reaction N2(g)+2H2(g)N2H4(l) Express your answer using one decimal place. H = kJ SubmitMy AnswersGive Up Part F S for this reaction. Express your answer using one decimal place. S = J/K SubmitMy AnswersGive Up Part G From the values of H and S, calculate G at 25 C. Express your answer using one decimal place. G = kJ SubmitMy AnswersGive Up Part H Predict whether this reaction is spontaneous under standard-state conditions. Predict whether this reaction is spontaneous under standard-state conditions. spontaneous under standard-state conditions nonspontaneous under standard-state conditions SubmitMy AnswersGive Up Part I H for the following reaction CH3OH(l)+O2(g)HCO2H(l)+H2O(l) Express your answer using one decimal place. H = kJ SubmitMy AnswersGive Up Part J S for this reaction. Express your answer using one decimal place. S = J/K SubmitMy AnswersGive Up Part K From the values of H and S, calculate G at 25 C. Express your answer using one decimal place. G = kJ SubmitMy AnswersGive Up Part L Predict whether this reaction is spontaneous under standard-state conditions. Predict whether this reaction is spontaneous under standard-state conditions. spontaneous under standard-state conditions nonspontaneous under standard-state conditions

Explanation / Answer

Part A: -197.8kJ. Correct

Part B: 2So2 + O2 ==> 2SO3

From literature Sf(SO3) = 256.65J/K

2Sf(SO2) = 248.11J/K

Sf(O2) = 205.03J/K

So,S = Sproducts - Sreactants= [2Sf(SO3)] - [2Sf(SO2) + 1Sf(O2)]

= [2(256.65)] - [2(248.11) + 1(205.03)] = -187.95 J/K = -187.9 J/K

Part C: dG = dH - TdS

T = 25oC = 298.15K

dG = -197800J - (298.15)(-187.95) = -14176.7J = -141.8kJ

Part D : As the dG is negative, the reaction is SPONTANEOUS.