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