In which process there is no exchange of heat between the system and surrounding during the process ?

In………………..process, no heat is exchanged between the system and the surroundings.

In………………..process, no heat is exchanged between the system and the surroundings.

There occurs no exchange of heat between a system and its surroundings in an adiabatic process. So, the change in entropy of the system is zero in this process. Justify the statement.

How is energy exchanged between the system and the surroundings in the form of (i) heat (ii) work?

During a process, the internal energy of the system increases by 240kJ while the system performed 90 kJ of work on its surroundings. How much heat was transferred between the system and the surroundings during this process. In which direction did the heat flow?

During a process, the internal enegry of the system increases by 240kJ while the system performed 90 kJ of work on its surroundings. How much heta was transferred between the system and the surroundings during this process. In which direction did the heat flow?