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Moderate

Enthalpy Changes for a System

APCHEM-JGQUFL

The total enthalpy change for the reaction $A \rightarrow B$ is represented by $ΔH_T$ . The reaction can be broken down into a series of steps as shown in the following diagram.

Which of the following is the correct relationship among the enthalpies for the reaction?

Created for Albert.io. Copyright 2016. All rights reserved.

A

$ΔH_T- ΔH_1- ΔH_2- ΔH_3= 0$

B

$ΔH_T+ ΔH_1+ ΔH_2+ ΔH_3= 0$

C

$ΔH_T= ΔH_3- (ΔH_2+ ΔH_1)$

D

$ΔH_T= ΔH_2- (ΔH_3+ ΔH_1)$