Hess' Law W1.3

Germain Henri Hess

A Russian Chemist that formulated the Hess’ law of constant summation or simply Hess’ law

Hess law

The enthalpy change associated with a reaction carried out in multiple steps in equal to the sum of the enthalpy changes for each individual step.

start with the reactants

when calculating the total enthalpy of an equation, what must be the first step to do?

A state function

Enthalpy only depends on the initial and final conditions, and not on the path taken to establish these conditions, this is also referred that enthalpy is what?

An extensive property

Enthalpy’s value depends on the amount substance present in the system. In relation to the aforementioned text, enthalpy is described as what?