What is coal? Coal is a fossil fuel and is the altered remains of prehistoric vegetation that originally accumulated in swamps and peat bogs. The energy we get from coal today comes from the energy that plants absorbed from the sun millions of years ago. All living plants store solar energy through a process known as photosynthesis.
Dynamic equilibrium. Definition. noun. A system in a steady state since forward reaction and backward reaction occur at the same rate. Supplement. In a dynamic equilibrium, the rate of loss is equal to the rate of gain. Dynamic equilibrium is applied in thermodynamics for systems involving reversible reactions.
This page explains what is meant by an equilibrium constant, introducing equilibrium constants expressed in terms of concentrations, K c. It assumes that you are familiar with the concept of a dynamic equilibrium, and know what is meant by the terms homogeneous and heterogeneous as applied to chemical reactions.