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Problem 8.71 Using bond enthalpies (Table 8.4 in the textbook), estimate ΔH for each of the following...

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Chemistry

Problem 8.71

Using bond enthalpies (Table 8.4 in the textbook), estimateΔH for each of the following reactions.

Part A

2CH4(g)+O2(g)→2CH3OH(g)

ΔH =

-321

  kJ  

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Correct

Part B

H2(g)+Br2(g)→2HBr(g)

ΔH =

-103

  kJ  

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Correct

Part C

2H2O2(g)→2H2O(g)+O2(g)

ΔH =

495

  kJ  

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Incorrect; Try Again

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