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`(Delta H - Delta U)` for the formation of carbon monoxide `(CO)` from its elements at `298K` is
`(R = 8.314 K^(-1)mol^(-1))`
A. `2477.57mol^(-1)`
B. `-1238.78Jmol^(-1)`
C. `1238.78Jmol^(-1)`
D. `-2477.57Jmol^(-1)`

1 Answer

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Best answer
Correct Answer - A
`C+1//2O_(2)rarrCO`
`:. DeltaH-DeltaU=DeltanRT`
`=-(1)/(2)xx8.314xx298`
`=- 1238.78J"mol"^(-1)`

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