Specific heat capacity is the amount of heat required to raise the temperature
of a particular substance of mass (kilogram, gram, pound) by 1 degree (celsius,
fahrenheit, kelvin).
Specific heat capacity of water is 4.1813 Joules/Gram Kelvin which means the
heat energy required to raise water's temperature 1 kelvin is 4.1813 joules per
gram.
Units of heat capacity are kilojoule per kilogram celsius, joules per gram
kelvin, btu per pound fahrenheit and more.