When a freezer is opened and then closed, some of the cold air is replaced with air at room temperature. This warm air then cools. Gay-Lussac’s law states that the pressure of a given mass of gas ...
It beeps if the fridge door is left open for too long or hasn’t closed properly, to stop food from spoiling. There are lots of other uses as well. A refrigerator or freezer door that is left open or ...
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