Adiabatic Compression

Definition - What does Adiabatic Compression mean?

A compression is called adiabatic compression when a gas is compressed so speedily that it doesn’t get the chance to interchange heat with its environment. Even though it is necessary to deny heat loss in adiabatic compression, it can also be done steadily compared to the rate of sound in the gas, to ensure that the quasistatic assumption is valid.

Petropedia explains Adiabatic Compression

Adiabatic compression is a process in which no heat is gained or lost from the air and the internal energy of the air is increased. In this process, pressure increases quicker than the volume diminishes due to increase in the air temperature. During the process, energy is transferred only as work. For a better understanding of the process, we can use example of the compression stroke in a gasoline engine.

The process is also called isentropic and can be expressed with-

p / = constant (2)

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