The potential energy of water differs between 99 °C and 1 °C due to the thermal energy associated with temperature. Hotter water at 99 °C has increased kinetic energy from faster molecular vibrations, which can be considered as potential energy if thermally isolated. When evaluating stored energy in substances, factors such as gravitational, thermal, rotational, and vibrational energy must be considered. The discussion highlights the ambiguity of the original question, particularly regarding the amount of water involved. A logical approach assumes the same quantity of water for a clearer quantitative analysis.
