Also called the "law of constant heat summation," this law states that the enthalpy of a reaction is equal to the sum of the enthalpies of the individual steps of the reaction.
This law can be used to calculate the acidity of the hydrohelium ion. This law can be used to find lattice energy in a process involving the formation of an ionic solid from a metal and a non-metal, called the Born-Haber Cycle. Since the quantity it concerns is a state function, this law is also equal to the differences in the [*] enthalpies of the products and the reactants. Also called the "law of constant heat summation," this law states that the enthalpy of a reaction is equal to the sum of the enthalpies of the individual steps of the reaction. For 10 points, name this law in thermochemistry named for a Swiss-born Russian chemist.
This law can be used to calculate the acidity of the hydrohelium ion.
{Hess’s} Law