1803864
Measuring Enthalpy Changes
- Calorimetry
- Dissolving, Displacement and Neutralisation Reactions
- The temperature of the reagents is taken, then they
are mixed together and the temperature at the end
of the reaction is taken
- The reactants are put mixed into a solution
which is put into a polystyrene cup. The cup is
put into a beaker and surrounded with cotton
wool for insulation. This is needed so that heat
energy does not escape into the surroundings
and the accuracy of the experiment is not
compromised
- A lid is placed on the cup to stop heat loss through evaporation
- A lid is placed on the cup to stop heat loss through evaporation
- The reactants are put mixed into a solution
which is put into a polystyrene cup. The cup is
put into a beaker and surrounded with cotton
wool for insulation. This is needed so that heat
energy does not escape into the surroundings
and the accuracy of the experiment is not
compromised
- The temperature of the reagents is taken, then they
are mixed together and the temperature at the end
of the reaction is taken
- Combustion
- Measuring the amount of energy
produced when a fuel is burnt
- The fuel is burnt below a copper can full of water. The flame
from the fuel being burnt heats the water. Once the
temperature of the water reaches 50 degrees C, the flame is put
out and the final temperature of the water is measured
- The spirit burner and lid are weighed. This
information along with the initial and final
temperatures of the water means that the enthalpy
change can be calculated
- The spirit burner and lid are weighed. This
information along with the initial and final
temperatures of the water means that the enthalpy
change can be calculated
- The fuel is burnt below a copper can full of water. The flame
from the fuel being burnt heats the water. Once the
temperature of the water reaches 50 degrees C, the flame is put
out and the final temperature of the water is measured
- Measuring the amount of energy
produced when a fuel is burnt
- Dissolving, Displacement and Neutralisation Reactions
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