In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the spec

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In the laboratory a "coffee cup" calorimeter, or constantpressure calorimeter, is frequently used to determine the specificheat capacity of a solid, or to measure the enthalpy of a solutionphase reaction. Since the cup itself can absorb energy, a separateexperiment is needed to determine the heat capacity of thecalorimeter. This is known as calibrating the calorimeter and thevalue determined is called the calorimeter constant. One way to dothis is to use a common metal of known heat capacity. In thelaboratory a student heats 95.59 g lead to 98.68 °C and carefullylowers it into a cup containing 75.69 g water at 22.62 °C. Shemeasures the final temperature to be 26.08 °C. Using the acceptedvalue for the specific heat capacity of lead (See the Referencestool), calculate the calorimeter constant.
Calorimeter Constant = J/°C.