Isothermal and adiabatic process

 

Isothermal Process:

• An isothermal process is a thermodynamic process in which the temperature of the system remains constant. 
• This means that the heat added to the system during the process is equal to the heat removed from the system, so the internal energy of the system does not change. 
• Isothermal processes occur when a system is in contact with a heat reservoir that maintains a constant temperature, such as a bath of water at a constant temperature.

Adiabatic Process:

• An adiabatic process is a thermodynamic process in which there is no heat exchange between the system and its surroundings. 
• This means that the internal energy of the system can change, but the temperature of the system remains constant.
•  Adiabatic processes occur when a system is isolated from its surroundings, such as when a piston is rapidly compressed in an engine.

• In an adiabatic process, the change in internal energy is equal to the work done on or by the system, which can be calculated using the first law of thermodynamics. 
• Adiabatic processes are important in many applications, including the study of engine cycles and the analysis of atmospheric processes.