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For the reaction , FeCO(3)(s)rarrFeO(s)+...

For the reaction , `FeCO_(3)(s)rarrFeO(s)+CO_(2)(g),DeltaH=82.8kJ` at `25^(@)C`, what is `(DeltaE " or "DeltaU)` at `25^(@)C`?

A

82.8 kJ

B

80.32 kJ

C

`-2394.77 kJ`

D

`-3274.75 kJ`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaH=DeltaE+Deltan_(g)RT`
`implies82.8 = DeltaU+(1xx8.314 xx298)/(1000)`
`implies" "DeltaU=80.32`
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