Concept explainers
(a)
The suitable experiment to measure the temperature of the freezer of a refrigerator, using an empty plastic bottle with a cap, a bowl of water, and a graduated cylinder. Given are the following options, when the temperature of the room is given as
I. Put the open plastic bottle into the freezer for half an hour. Take the bottle out, turn it upside down into the water, and measure the volume of the water sucked into the bottle.
II. Put the open plastic bottle in the freezer for half an hour. Take the bottle out and close it with the cap. Wait until the shape stops changing. Turn the bottle upside down into the water, open the cap, and measure the volume of the water that entered the bottle.
III. Put the closed plastic bottle in the freezer for half an hour. Take the bottle out, turn it upside down into the water, and then open the cap. Measure the volume of the water sucked into the bottle.
IV. Put the closed plastic bottle in the freezer for half an hour. Take the bottle out, open the cap, and turn the bottle upside down into the water. Measure the volume of the water sucked into the bottle.
(b)
The expression for the temperature of the freezer, which can be evaluated with the help of the chosen option in the sub-part (a) of the given problem using the physical quantities along with the assumptions made.
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College Physics
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