A cup of coffee (system mass 1 kg) at 30oC rests on a table of height 1 m. An identical cup of coffee rests on the floor at a temperature of 25oC. Determine
(a) the difference (cup 2 minus cup 1) in the stored energy (E2 - E1) in the two systems.
(b) What fraction of the difference can be attributed to potential energy (PE)? Use the SL (solid/liquid) system state daemon. Assume properties of coffee to be similar to those of water.