Five moles of monatomic ideal gas are contained at a pressure of
4 atm and a temperature of 250 K. 35400 J of heat are transferred
to the gas. Then, the gas pressure is used to expand a piston, and
the expanding gas does 1200 J of work against its surroundings.
However, the piston is not perfectly insulated, and 600 J of heat
is lost from the gas during the expansion. All processes are
reversible. Calculate the final temperature of...