CALORIMETER
EQUIPMENT
Lead Shot
400 ml Pyrex
(NOT KIMAX) Beaker
400 ml Pyrex
(NOT KIMAX) Beaker with Wooden Handle
1000 ml Pyrex (NOT KIMAX) Beaker
Thermometers
Hot Plate
Variac
NARRATIVE
A calorimetry
experiment may be performed to determine the specific heat of lead using lead shot.
Measure into one 400 ml beaker, 100 g of water and in another 400 ml beaker, 300 g of lead
shot. DO this early enough so that the water reaches room temperature. Fill the 1000 ml
beaker about 3/4 full of water. Place the wooden handle around the 400 ml beaker
containing the lead shot and place it in the 1000 ml beaker. Bring the water to a boil
using the hot plate and allow the lead shot to come to equilibrium. Measure and record the
equilibrium temperature. Pour the lead shot into the 400 ml beaker containing the 100 g of
room temperature water. Record the equilibrium temperature. Using the equation:
DQgained = DQlost, where DQ = mcDT
Calculate the specific heat of lead, where:
Specific Heat of Water = 4.18 kJ/(kg-K)
Specific Heat of Lead Shot = 0.128 kJ/(kg-K)