Lab 11
Date:
Title:
Theory:
Aim:
To determine the specific latent heat of ice using the method of mixtures.
Apparatus
Small ice cubes (small pieces of ice), styrofoam cups, thermometer, stirrer, water,
electronic balance,
Diagram: _(suitable title)______________________________________
Method:
1. The mass of the empty Styrofoam cup was measured.
2. Water was poured into the Styrofoam cup and the new mass of the cup and water
was recorded.
3. The ice cubes were placed into a Styrofoam cup and the mass of the cup and ice
was measured.
4. The initial temperature of the room-temperature water was recorded.
5. Ice was poured into the Styrofoam cup with the water and stirred until all the ice
had been dissolved.
Results_____________(suitable title)
Initial temperature of water:
23 °C
Mass of empty Styrofoam cup
73.3 g
Mass of water and Styrofoam cup:
155.3 g
Mass of water
82 g
Mass of Styrofoam cup and ice:
136.3 g
Mass of Ice
63 g
Final Temperature of mixture:
3 °C
Specific heat capacity of water:
4.186 J/g/°C
Data analysis:
1. Calculate the energy lost by the water.
2. Calculate the specific latent heat of ice.
3. What is meant by the specific latent heat of ice?
4. What is the percentage difference between the theoretical and
experimental values?
5. What could be a possible reason for the difference between the theoretical
and experimental values for the specific latent heat of ice.
Discussion:
Precaution:
Source of Error:
Conclusion: