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nishchith bhat Grade: 12
        

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

7 years ago

Answers : (1)

Askiitians Expert Sahil Arora - IITD
19 Points
										

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
7 years ago
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