Heat Flow and the First Law

Heat flow and the first law of thermodynamics explain how energy moves between objects at different temperatures. When a pot of water sits on a hot stove, heat flows from the stove to the water. This transfer continues until the temperatures tend to equalize.

The same idea appears when objects ar...

Enthalpy is a type of energy that flows between objects of different temperatures.

In order to understand enthalpy, one must be familiar with the first law of thermodynamics, which states that the energy cannot be created or destroyed, it can only change forms. And the total amount of energy in a system is constant.

The concept of en...