8. A 2.2kW kettle is used to increase the temperature of 500g of water from 18°C to its boiling point.
Calculate or find:
a) Heat energy supplied to the water.

Explanation:The specific heat capacity of a substance is the quantity of heat energy required to raise the temperature of 1 kg of the substance by 1°C. The symbol used for specific heat capacity is c and the units are J/(kg °C) or J/(kg K). (Note that these units may also be written as J kg–1 °C–1 or J kg–1 K–1).

Some typical values of specific heat capacity for the range of temperature 0°C to 100°C include:

come closer and become far apart and become steam/gas