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he temperature of water after an hour of freezing can vary depending on several factors, such as the initial temperature of the water, the temperature of the freezer, the volume of the water, the container, and the efficiency of the freezing process. However, we can make some general statements.
Most household freezers are set to maintain a temperature of about -18°C (0°F). If you place a container of room temperature water (around 20°C or 68°F) into such a freezer, after an hour, the water will have cooled significantly but may not be completely frozen. The exact temperature would be somewhere between 0°C (32°F) and the freezer's temperature, depending on the factors mentioned above.
For water to freeze, it needs to reach 0°C (32°F). This is known as the freezing point of water under normal atmospheric pressure. Depending on the conditions, the water may have reached 0°C but may not have had enough time to transition completely into ice, because the phase change from liquid to solid also requires time and removal of heat from the water.