In prob. 8–21, assume that the heat is transferred from the cold reservoir to the hot reservoir contrary to the clausius statement of the second law. prove that this violates the increase of entropy principle—as it must according to clausius.

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.

Patricia is trying to compare the average rainfall of new york to that of arizona. a comparison between these two states for the months of july through september would best be measured in