Temperature measurements are very important in calorimetery experiments. Temperature data can be collected manually or automatically; however, the general principles of either data collection method are similar:
the solution to be measured must be the same temperature throughout (the solution should be stirred or mixed)
Manually - Insert a glass stirring rod through the lid. Mixing is accomplished by agitating the solutions with the stir rod as the reaction proceeds.
Mechanically - Add a magnetic stirring bar to the calorimeter, clamp the calorimeter to a ring stand above a magnetic stirring plate, and turn the stirring plate to its lowest setting. Be careful, even low speed stirring can cause splashing, and may destroy the
coffee cup.
the thermometer or thermocouple must not touch the walls of the calorimeter
the initial temperature of each solution or solid must be measured
the temperature in the calorimeter should be observed at frequent
intervals.
