Specific heat capacity (J/g^oC) is the amount of heat required to raise the temperature of one gram of a substance by 1°C . Specific heat capacity only depends on the kind of substance. For example, 100 g of gold will have the same specific heat capacity as 1 kg of gold.

Water has a relatively high specific heat (~4.2 J/g^oC for liquid, 2.09 J/g^oC for solid ) compare to metals (mostly less than 1 J/g^oC). Therefore, it's easier to heat metal than water. .