Adiabatic Process

The adiabatic process is a thermodynamic process in which there is no heat transfer from in or out of the system. For an ideal gas, an adiabatic process is a reversible process with constant entropy. The mathematical representation of the adiabatic process is ΔQ=0. A process is said to adiabatic if the system is perfectly insulated, the temperature difference between the system and the surrounding is zero and there is no heat transfer process.

The adiabatic process is that would not take part in the transfer of heat or matter coming to or coming out of a system. The underlying assumption as the process being adiabatic is a simplifying assumption that has been made frequently.

Adiabatic Process

For instance, the gas compression within an engine cylinder is expected to happen so fast that on the compression process time scale, a minimum amount of the energy of the system could be produced and sent out in the form of heat.

Despite the cylinders being not insulated and has a conductive nature, the process is deemed to be adiabatic. The same could be considered to be true for the enlargement process of such a system.

Reversible Adiabatic Process

A Reversible Adiabatic Process is also called an  Isentropic Process. It is an idealized thermodynamic process that is adiabatic and in which the work transfers of the system are frictionless; there is no transfer of heat or of matter and the process is reversible. Such an idealized process is useful in engineering as a model of and basis of comparison for real processes.

What is Adiabatic Expansion?

Adiabatic expansion is defined as an ideal behaviour for a closed system, in which the pressure is constant and the temperature is decreasing.

What is Adiabatic Compression?

Adiabatic compression of the air is defined as the compression in which no heat is added or subtracted from the air and the internal energy of the air is increased which is equal to the external work done on the air. The pressure of the air is more than the volume as the temperature increases during compression.

Interested to learn more about other concepts related to the adiabatic process, below are the links:

Adiabatic Process Example

There are several instances, some are stated below:

  • It is a process where when there is a gas compression and heat is generated. One of the simplest examples would be the release of air from a pneumatic tire.
  • Adiabatic Efficiency is applied to devices such as nozzles, compressors, and turbines. One of the good applications of the adiabatic process.
  • The pendulum oscillating in a vertical plane is an example of it.
  • A quantum harmonic oscillator is also an example of an adiabatic system.
  • When we put the ice into the ice box, no heat goes out and no heat comes in.

Frequently Asked Questions on Adiabatic Process

What is Adiabatic process?

The adiabatic process is a thermodynamic process in which there is no heat transfer from in or out of the system. For an ideal gas, an adiabatic process is a reversible process with constant entropy. The mathematical representation of the adiabatic process is ΔQ=0

What is Adiabatic Expansion?

Adiabatic expansion is defined as an ideal behaviour for a closed system, in which the pressure is constant and the temperature is decreasing.

What is Adiabatic Compression?

Adiabatic compression of the air is defined as the compression in which no heat is added or subtracted from the air and the internal energy of the air is increased which is equal to the external work done on the air. The pressure of the air is more than the volume as the temperature increases during compression.

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