C4.4.1 - Hess' Law

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Chemistry

11th

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5 Terms

1
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What does Hess’ Law allow you to calculate?
enthalpy change
2
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What does Hess’ Law state?
whatever route is taken from reactants to products, the overall enthalpy change for the reaction is the same
3
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Which law states that whatever route is taken from reactants to products, the overall enthalpy change for the reaction is the same?
Hess’ Law
4
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What type of enthalpy change is Hess’ Law particularly useful for?
not directly observable
5
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If a reaction’s enthalpy change is not directly observable, is it still possible to calculate?
yes