A cylindrical lead rod with a diameter of 2.54 cm and a length of 76.2 cm is initially at a temperature of 20.0 C. Next, 2.27 kg of mercury at a temperature of 357 C is poured over the rod.
a) After reaching equilibrium, what is the final temperature of the rod and the mercury?
b) After reaching equilibrium, what is the length of the rod, in cm?
c) After reaching equilibrium, what is the volume of the rod?