(a)[2]
Define the term specific latent heat.
(b)[3]
A heater in an electric kettle has a power of $2.40\,\text{kW}$. While the water in the kettle boils at a constant rate, the mass of water that evaporates in $2.0\,\text{minutes}$ is $106\,\text{g}$. The specific latent heat of vaporisation of water is $2260\,\text{J g}^{-1}$. Calculate the rate of loss of thermal energy to the surroundings of the kettle during boiling.