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The standard molar heats of formation of...

The standard molar heats of formation of ethane, carbon dioxide, and liquid water are `-21.1, -94.1`, and `-68.3kcal`, respectively. Calculate the standard molar heat of combustion of ethane.

A

`372 " Kcal"`

B

`162 " Kcal"`

C

`-240 " Kcal"`

D

`183.5 " Kcal"`

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The correct Answer is:
A
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