Question

Consider a system comprised of two 1000g blocks of copper (c_p = 0.1 cal/g/K). If one block is at 300K and the other is at 400K, what is the maximum amount of work that can be extracted from the system if no additional heat is allowed to flow into or out of the system. What will the final temperature be after the work is extracted? Describe a process whereby you could extract the maximum work. In working out this problem, ignore any PV work associated with the expansion of the blocks.