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Following reaction occurring in an autom...

Following reaction occurring in an automobile `2C_(8)H_(18)(g)+25O_(2)(g) to 16CO_(2)(g)+18H_(2)O(g)`. The sign of `triangleH, triangleS and triangleG` would be-

A

`+, -, +`

B

`-, +, -`

C

`-, +, +`

D

`+, +, -`

Text Solution

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The correct Answer is:
B
For Combustion reaction, `DeltaH` is negative, `Deltan=(16+18)-(25+2)=+7", so " DeltaS` is +ve, reaction is spontaneous, hence `DeltaG` is -ve.
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