The human body obtains 1078 kJ from a candy bar. If this energy were used to vaporize water at 100 °C, how much water in liters could be vaporized? (Assume that the density of water is 1.0 g/mL.)
Given and known values are :
Heat available to the body =1078 kJ.
Heat of vaporisation of water at 100 oC.
It is clearly given that all the 1078 kJ should be used to vaporize water at 100oC.
Molecular weight of water =18g/mol.