Question

Draw a labelled diagram of the apparatus you would use to determine the specific latent heat of vaporization of steam by the method of mixtures. State the two most important precautions you should take in performing the above experiment.

Answer 1

The following is the diagram of the apparatus we use to determine the specific latent heat of vaporization of steam by the method of mixtures.

The most important precautions we should take in performing the above experiment are as follows:

1. The steam should be perfectly dry.
2. Insulate the calorimeter perfectly.
3. Use a highly sensitive thermometer.
4. Use a clean and shining calorimeter.