1.

The heat change for the following reaction at 298K and at constant pressure is +7.3 kcal A_(2)B(s) rarr 2A(s) + 1//2 B_(2)(g), DeltaH =+7.3 kcal The heat change at constant volume would be

Answer»

7.3 KCAL
More than 7.3
Zero
None of these

Solution :`DeltaH=DeltaE+DeltanRT or DeltaE=DeltaH-DeltanRT`
`thereforeDeltaE=+7.3-(1)/(2)xx0.002xx298=7.3-0.298=7` kcal.


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