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Because enthalpy is a state function and an extensive property.

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10y ago
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4mo ago

Hess's law allows you to calculate the enthalpy change of a reaction by using the enthalpy changes of other reactions. This is particularly useful when direct measurement of the desired reaction is not feasible.

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8y ago

The reason Hess' Law can be used to calculate enthalpy change is based on the fact the ∆H is a state function, and thus is independent of the path taken.

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11y ago

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Q: What is one reason to use Hess's law?
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What is one reason to use Hess' law?

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