The Kirchhoff's equation can be represented by

Options

A. `Delta H_(2)+DeltaH__(1)=int_(T_(1))^(T_(2))DeltaC_(p)dT`
B. `DeltaH_(2)-DeltaH_(1)=int_(T_(1))^(T_(2))DeltaC_(p)dT`
C. `(DeltaH_(2))/(DeltaH_(1))=int_(T_(1))^(T_(2))DeltaC_(p)dT`
D. `H_(2)=H_(1)+int_(T_(1))^(T_(2))DeltaC_(p)dT`

Answer

B

Explanation

`(Delta H_(2)-Delta H_(1))/(T_(2)-T_(1))=DeltaC_(p)`
`Delta C_(p)=C_(p("products"))-C_(p("reactants"))`
`therefore Delta H_(2)-Delta H_(1)=int_(T_(1))^(T_(2)) Delta C_(p)*dT`