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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`

Text Solution

Verified by Experts

The correct Answer is:
A
`C_(2)H_(6)+5O_(2) to 2CO_(2)+3H_(2)O`
Substitute the values.
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