The final volume of a system is equal to the initial volume in a certain process. Is the work done by the system necessarily zero? Is it necessarily nonzero?

In a cyclic process, work done by the system is

Statement-1: Temperature of a system can be increased without supplying heat. Statement-2: If the initial volume of system is equal to final volume in a process then work done is necessarily zero. Statement-3: If an adiabatic curve for a gas intersect with an isothermal curve for the same gas then at the point of intersection, the ratio of slope of the adiabatic and the isothermal curve is gamma .

If the total mechanicla energy of a particle is zero is its linear momentum necessarily zero? Is it necessarily nonzero?

Consider the process on a system shown in figure. During the process, the work done by the system

Consider a process shown in the figure. During this process the work done by the system

A thermodynamic system is taken through the cyclic PQRSP process. The net work done by the system is

If final momentum is equal to initial momentum of the system then

consider the processes on a system shown in. during the processes,the work done by the system

In an isothermal thermodynamical process, the value of work done by a system is