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For the reaction A(g)+2B(g)rarr2C(g)+3...

For the reaction
`A(g)+2B(g)rarr2C(g)+3D(g)`,
the value of `DeltaH` at `27^(@)C` is `19.0 kcal`. The value of `DeltaE` for the reaction would be
`(R=2.0 cal H^(-1)mol^(-1))`

A

20.8 kcal

B

19.8 kcal

C

17.8 kcal

D

20.2 kcal

Text Solution

Verified by Experts

The correct Answer is:
C
Use `DeltaH=DeltaE+DeltanRT`
`DeltaH=19+2xx2xx10^(-3)xx300=20.2 kcal , Deltan=2`.
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