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The temperature at which a liquid transform into a solid is called its freezing point. The freezing point of water is 0^oC . At this temperature, water begins to freeze. In this scenario, the temperature of the ice at which it is completely transformed into its solid form by the freezing water has to be calculated. For that, we need to observe the graph of temperature versus energy.

Consider the graph of temperature verses energy. It gives the idea of how phase changes with the temperature.

From this graph, we can understand that at 0^oC , there will be water and ice. When the temperature falls below 0^oC , the water becomes completely transformed into ice.

So, the temperature of ice at which ice is formed from freezing water is slightly less than 0°C.