Why does an ice cube melt even in cold water
the water is still warmenr than the ice cube, so thermal energy moves from the water to the ice cube
the ice cube is still colder than the water, so thermal energy moves from the ice cube to the water
ice cubes must always melt eventually
the air around the water melts the ice cube
, even if the water is cold
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An ice cube melts even in cold water because of the process of heat transfer. Heat always moves from a higher temperature object to a lower temperature object until they reach equilibrium. In this case, the water is warmer than the ice cube, so thermal energy flows from the water to the ice cube.
Although the water may be colder than its boiling point, it can still transfer thermal energy to the ice cube because heat transfer occurs as long as there is a temperature difference. The ice cube, being colder than the water, will continue to absorb thermal energy from the water until it reaches its melting point.
As for the air around the water, it does not directly melt the ice cube. However, the air temperature can affect the rate at which the ice cube melts. If the air temperature is warmer than the ice cube, it can contribute to increasing the overall temperature around the ice cube, which may facilitate the melting process.
So, even in cold water, the ice cube will melt because of the temperature difference between the ice and the water, and the transfer of thermal energy from the warmer water to the colder ice cube.