Specific Latent Heat

Specific Latent Heat

When a change of state occurs the energy inputted changes the internal energy but not the temperature of the substance. The specific latent heat is the energy required to change the state of 1 kg of that substance.

Specific Latent Heat: Example A

In this example you need to calculate the energy required to melt ice.

Specific Latent Heat: Example B

This is a complex example where you need to use your knowledge of specific heat capacity to answer the question fully.

Heating and Cooling Curves

When a substance changes state it does so at a constant temperature, this can be seen in experiments in the lab. We can also see how data loggers can be used to take many more readings.

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