How do you find delta h of a chemical equation?

1 Answer
Dec 24, 2017

How else but by measurement?


It is not straightforward to measure the enthalpy of a chemical reaction. In the undergraduate laboratory, sometimes we measure the temperature change of a given quantity of water, which the given reaction heats, and this is used to estimate the heat evolved by the given reaction, i.e. they use the #"heat capacity of water"#; this is reasonably high.

i.e. #C_"heat capacity of water"=4.186*J*K^-1*g^-1#.