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Based on the following enthalpy diagram for a forward reaction from elements to products, the total change in enthalpy for the reverse reaction from products to elements is best described by which of the following?

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

A

$ΔH_{rxn}= ΔH_1+ ΔH_2+ ΔH_3$

B

$ΔH_{rxn}= ΔH_1- ΔH_2- ΔH_3$

C

$ΔH_{rxn}= -ΔH_1+ ΔH_2+ ΔH_3$

D

$ΔH_{rxn}= ΔH_2+ ΔH_3$

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