Free Energy

Free energy turns on light switch. How much does it cost to take a TV or a long shower all day. You need to work daily, weekly, or many hours a year in order to store old food in car gas, cooling / heating fee, housing heating fee or refrigerator. If you do not have to pay the electricity bill for the rest of your life, how quick will his retirement be? No one will fall into poverty if they can give up on the monthly electricity bill. Free energy is an undeveloped resource that means self-sufficiency, pride, and better living standards.

Historically, the term "free energy" has been used in all quantities. In physics, free energy refers to the Helmholtz free energy most often represented by A or F. On the other hand, in chemistry, free energy mostly refers to Gibbs free energy. The values ​​of the two free energies are usually very similar, and the expected free energy function is also usually included in manuscripts and presentations. The basic definition of "energy" is the ability to measure changes in the body (thermodynamics, systems). For example, when a person presses a heavy box of several meters forward, he personally puts a mechanical energy on the box a few meters away. This is also called work. The mathematical definition of energy of this form is the product of the force applied to the object and the distance the box travels (work = force x distance). Since a person changed the stationary position of the box, a person added energy to the box.

State function of free energy, thermodynamics, energy state or thermodynamic equilibrium system. Free energy has the dimension of energy, its value depends on the state of the system, not its history. You can use freedom to determine how the system changes and how much work they can produce. It is expressed in two forms, Helmholtz free energy F, also called work function, Gibbs free energy G. If U is the internal energy of the system, PV is the pressure volume product and TS is the temperature entropy product (T is a temperature exceeding absolute zero and F = U - TS, G = U + PV - TS. Can also be written in the form G = H - TS where H = U + PV is. Free energy is a broad property whose size is the amount of material in a given thermodynamic state depends on.