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For the reaction , FeCO(3(s)) rarr FeO((...

For the reaction , `FeCO_(3(s)) rarr FeO_((s)) + CO_(2(g)), Delta H= 82.8kJ " at " 25^(@)C`, what is `(Delta E or Delta U) " at " 25^(@)C`?

A

82.8kJ

B

80.32kJ

C

`-2394.77` kJ

D

85.28 kJ

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta E= Delta H- Delta n_(g) RT`
`= 82.8 - (1 xx 8.314 xx 298)/(1000) = 80.32KJ`
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AAKASH SERIES-CHEMICAL THERMODYNAMICS-LECTURE SHEET (EXERCISE-II) (LEVEL - I(MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS)
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