To find the water equivalent of a given calorimeter.

 

Aim:- To find the water equivalent of a given calorimeter.

Apparatus:- Calorimeter,thermometer,100ml beaker measuring cylinder,stirrer,stop watch

Theory:- The heat capacity of a defined system is the amount of heat needed to raise the system temperature by one degree.It is expressed in units of thermal energy per degree temperature.

A calorimeteris a scientific device used to measure changes in heat during chemical reaction and the heat capacity of different substances.

Procedure:- 

1. Measure 100ml of water in measuring cylinder.
2. Transfer it to be calorimeter fitted with stirrer and thermometer.
3. temperature is noted at every half minute till it become constant or for 5 minut at least.
4. Now heat hundred ml of water in a beaker upto 60 to 65 degree Celsius.
5. Again the temperature is noted after every 30 seconds for 5 minutes.
6. Now add this water into cal metre and note the temperature of the mixture every 30 seconds for 5 minutes
7. similarly take reading for 200ml of cold at room temperature and hot water each.

Note down the Reading & Calculation in Pdf