adiabatic process, in thermodynamics, change occurring within a system as a result of transfer of energy to or from the system in the form of work only; i.e., no heat is transferred. A rapid expansion or contraction of a gas is very nearly adiabatic.

How do you know if a process is adiabatic?

An adiabatic process is one in which no heat is gained or lost by the system. The first law of thermodynamics with Q=0 shows that all the change in internal energy is in the form of work done.

Which process is adiabatic in nature?

An adiabatic process is a thermodynamic process that occurs with no heat transfer between the system and its environment. In other words, the state changes, work can be done on or by the system during this change, but no heat energy is added or removed.