Why Is It That in Cold Winters a Tub of Water

question 73

Multiple Choice

Why is it that in cold winters a tub of water placed in a farmer's canning cellar helps prevent canned food from freezing?

• A)As long as the water remains in the liquid phase, evaporation will give off heat to the cellar.
• B)If the canned goods are in the tub of water, molecular interactions will keep them from freezing.
• C)The cold in the cellar is consumed by freezing the water, not the canned goods.
• D)The continual release of energy by the freezing water keeps the temperature of the cellar from going below 0°C.

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