Try This: Measuring Thermal Energy

A six ounce cup and a twelve ounce cup are both filled with 85 degree water.

1) Do they have the same heat content?

2) Do they have the same amount of energy?

Conclusion:

They do NOT have the same heat content. Since water in the two cups is at the same temperature, the average kinetic energy of the molecules in the cups is the same; however, the 12 ounce cup has twice as many molecules when compared with the 6 ounce cup and thus has the greater total motion or heat energy.