Write mathematical equation of first law of thermodynamics for Adiabatic process
In an adiabatic process, there is no exchange of heat between the system and its surroundings, i.e. q = 0.
Therefore, the equation
`triangle U=W or-triangle U=-W`
The above equation indicates that the increase in internal energy of the system is due to the work done on it by the surroundings or that the work done by the system on the surroundings is at the expense of the system’s internal energy which decreases in the process.