An 8.00 X 102-g block of lead is heated in boiling water, 100.0°C, until the block's temperature is the
same as the water's. The lead is then removed from
the boiling water and dropped into 2.50 X 10² g of
cool water at 12.2°C. After a short time, the temper-
ature of both lead and water is 20.0°C.
a. How much heat is gained by the cool water?
b. On the basis of these measurements, what is the
specific heat of lead?