First slide

Enthalpy and enthalpy change

Question

The enthalpy change for a reaction does not depend upon

Easy

A

the physical states of reactants and products
B

use of different reactants for the same product
C

the number of intermediate reaction steps
D

the differences in initial or final temperatures of involved substances

Solution

The change in enthalpy does not depend upon number of intermediate steps.
Enthalpy change ( $Δ$ H) is a state function so it does not depend on the path taken by the reaction, It depend only on the difference of final and initial values of enthalpy change.

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