How much heat is contained in 100 kg of water at 60.0 °C?

First we need to write down heat capacity for water which is constant.

cp=4186 J / (kg*K)

The equation for Energy that we will be calculating is:

E=cp*m*T

where m is mass and T is absolute temperature (273,15 + 60 in this case). Replacing all the values in equation we get:

E = 4186*100*333,15 = 139 456 590 J