Answer to Question #103323 in Molecular Physics | Thermodynamics for kabeer

Question

why the temperature of hot water decreased when cold water was added

Answer 1

Because the hot water will heat the cold water up and the cold water will cool the hot water down until they have the same temperature. There is more energy in the hot water than the cold water. When the hot & cold water mix, the energy evens out so the temperature will be averaged.