If `1000kg` of water is heated from `0^(@)C` to `100^(@)C`, calculate the increase in mass of water.

Explanation

Heat energy gained by water
`dQ=E=c.m.d theta=10^(3)xx10^(3)xx(100-0)`
`=10^(8)cal.=4.2xx10^(8)J`
Gain in mass, `m=(E)/(c^(2))=(4.2xx10^(8))/((3xx10^(8))^(2))`
`=4.66xx10^(-9)kg`