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What is the value of internal energy cha...

What is the value of internal energy change `(DeltaU)` at `27^(@)C` a gaseous reaction `2A_(2)(g)+5B_(2)(g)to2A_(2)B_(5)(g)` (whose heat chhange at constant pressure is -50700J)? `(R=8.314JK^(-1)" "mol^(-1))`

A

`-50700J`

B

`-63171J`

C

`-38229J`

D

`+38299J`

Text Solution

Verified by Experts

The correct Answer is:
C
`DeltaH=DeltaU+Deltan_(g)RT`
`-50700=DeltaU+(-5)xx8.314xx300`
`DeltaU=-38229J`
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