1.

Given the reaction at 975^(@)C and 1 atm. CaCO_(3)(s)toCaO(s)+CO_(2)(g),DeltaH=176kJ Then DeltaE is equal to

Answer»

<P>186.4kJ
162kJ
165.63kJ
180kJ

Solution :GIVEN `DeltaH=176` kJ
`T=975^(@)C=975+273=1248K`
`CaCO_(3)(s)toCaO(s)+CO_(2)(g)`
`Deltan_(g)=n_(p)-n_(r)=1-0=1`
`DeltaE=DeltaH-Deltan_(g)RT`
`=176-1xx8.314/1000x1248`
`=176.10.375=165.63kJ`


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