Question

What is ΔH(rxn)? and it is formula

Answer 1

Step-by-step explanation:

Here, we want to give a definition

Delta H of a reaction is the change in ethalpy that occurs at the end of the reaction. It is the end result of heat changes that occur in a chemical reaction

It describes what occurs at the end of the reaction

For instance, it is negative for an exothermic reaction which indicates that heat is given off. It is positive for an endothermic reaction, meaning heat is absorbed

Mathematically:

`\Delta H_(rxn)\text{ = }\Sigma\text{ \lparen}\Delta H_(products))\text{ - }\Sigma(\Delta H_(reactants))`