What happens when two liquids of different temperatures are mixed and when two cups of cold water of the same temperature are mixed the water will be twice as cold?
When the two liquids are mixed together, heat rejected from the liquid with the higher temperature will be absorbed by the liquid with the lower temperature. So we can say that the energy is conserved during the mixing of these two liquids. When two cups of cold water of the same temperature are mixed, the water will be twice as cold. Thermometers are used for measuring heat. The temperature of iced water at 0 °C will go down when more ice is added. When two liquids or gases are in the same container, the random motion of their molecules makes them mingle together until the mixture is the same throughout.
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