During an integral number of complete cycles, a reversible engine (shown by a circle) absorbs
1200 joule from reservoir at
400 K and performs
200 joule of mechanical work.
(a) Find the quantities of heat exchanged with the second reservoir.
(b) Find the change of entropy in second reservoir (in
J/K).
(c) What is the change in entropy of the universe?
![](https://s3-us-west-2.amazonaws.com/infinitestudent-images/ckeditor_assets/pictures/617188/original_12.3.JPG)