Experiment «Heat energy»
Laboratory work. Grade 10.
This experiment directed to identify final temperature of water, as a result of mixture of cold
water with hot water that will be poured in a calorimeter until they will reach thermal
equilibrium.
Steps:
1) Plot the (approximate) temperature versus time graph of water until it ill reach thermal
equilibrium.
2) Results of your direct measurements have to be written in table 1. Final temperature have to
be identified by calculation (with the help of a teacher) and comparing with thermometer
reading:
Mass of cold
water
m/
Initial
temperature of
cold water
t/
Specific heat
capacity of water
(hot and cold)
c/
4180
Mass of hot
water
m/
Initial
temperature
of hot water
t/
Final
temperature of
a mixture
tx/
Calculation of the final temperature:
Explanation of the process:
Improvements to the way we used to get results (in terms of method and instruments that we
used during the experiment):