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Is change in enthalpy change(of a reaction) dependent on temparature difference alone considering c p is independent of temparature?if not what are the factors that change, change in enthalpy change

Is change in enthalpy change(of a reaction) dependent on temparature difference alone considering cp  is independent of temparature?if not what are the factors that change, change in enthalpy change

Grade:12

1 Answers

Askiitians Expert Sahil Arora - IITD
19 Points
10 years ago

Dear nishchith

Yes enthalpy change depends on temperature..

But this effects is counted only at higher temperature...given by Kirchoff equation.

ΔH2-ΔH1=ΔCp ΔT if ΔCp is constant..

ΔCp=(Sum of heat capacities of Products ) - (Sum of heat capacities of Reactant)

if ΔCp is a function of temperature, then the right side will be an integral...put dT in place of ΔT.

other factors are:

Physical state of the reactants and the products

Pressure

volume

Amount of Reactant

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Regards,

Askiitians Expert
Sahil Arora
IIT Delhi

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