Its been some time so i might be wrong but i think the answer is 3 either or 2
Answer:
zero
Explanation:
Work done = - 400 J
In an isothermal process, the temperature remains constant. So, according to the first law of thermodynamics
dQ = dU + dW
As the temperature remains constant and the change in internal energy is the function of change in temperature, here change is temperature is zero so the change in internal energy is also zero.
Explanation:
This should be right. if any doubt post a comment.
One eighth of a gram will remain