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Which statement explains why Hess's law holds? | StemPy Lab
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Which statement explains why Hess's law holds?
Chemistry
Easy
High School (11–12)
Chemical Thermodynamics › Enthalpy and Hess's Law
A-Level
AP
IB
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Which statement explains why Hess's law holds?
Enthalpy is a state function, so its change depends only on the start and the end
Every reaction gives out the same heat whatever the conditions
Heat at constant volume always equals heat at constant pressure
Bond enthalpies are the same in every molecule
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