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The value of DeltaH-DeltaE for the follo...

The value of `DeltaH-DeltaE` for the following reaction at `27^(@)C` will be
`2NH_(3)(g)toN_(2)(g)+3H_(2)(g)`

A

`8.314xx27xx(-2)`

B

`8.314xx300xx(-2)`

C

`8.314xx27xx(-2)`

D

`8.314xx273xx(1)`

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaH=DeltaE+Deltan_(g)RT`
`:. DeltaH-DeltaE=Deltan_(g)RT`
`2NH_(3)(g)toN_(2)(g)+3H_(2)(g)`
Here `Deltan_(g)=(3+1)-2=4-2=2`
`R=8.314 JK^(-1)mol^(-1)`
`T=27+273=300 K`
`:. DeltaH-DeltaE=Deltan_(g)RT=(2)xx(8.314)xx(300)`
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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