Identify the invalid equation

Options

A. `DeltaH = sumH_("products") - sumH_("reaction")`
B. `DeltaH = DeltaU +pDeltaV`
C. `DeltaH_("(reaction)")^(@) = sumH_(("product bonds"))`
D. `DeltaH = DeltaU + DeltanRT`

Answer

C

Explanation

Relation between heat of reaction `(DeltarH^(@))`
and bond enthalpies of reactants and products is
`DeltarH^(@) = sumBE_("reactants") -sumBE_("products")`
`:. DeltaH_("reaction")^(@) = sum_("product bonds")^(@) - sum_("reactant bonds")^(@)`