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?

For the reaction , FeCO_(3(s)) rarr FeO_((s)) + CO_(2(g)), Delta H= 82

1.	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?
Answer» 82.8kJ 80.32kJ `-2394.77` kJ 85.28 kJ Solution :`Delta E= Delta H- Delta n_(g) RT` `= 82.8 - (1 XX 8.314 xx 298)/(1000) = 80.32KJ`