The diagram describes a process carried out in a gas as it cycles from point a t

Question

The diagram describes a process carried out in a gas as it cycles from point a to point a. The direction of the cycle (either clockwise or counterclockwise) determines which statement accurately describes this cycle?

whether or not the net change in internal energy is zero

whether the net change in internal energy is positive or negative

whether the net work is positive or negative

whether the net work is positive or zero

whether or not the net change in internal energy is zero

whether the net change in internal energy is positive or negative

whether the net work is positive or negative

whether the net work is positive or zero

Explanation / Answer

It would have been better if you had attached the picture.

Internal energy depends only the initial and final state.It doesn't depend on the direction. SO 1st and 2nd options are ruled out.

But work and heat depends on the path. If work is positive in one direction, it will be negative in other direction.

So option 3 is the answer.

whether the net work is positive or negative

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