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Question 15
A student designed an experiment to test the hypothesis that even very cold objects like ice contain heat. The student obtained liquid air, at a temperature of -200 0C, stored in a thermally insulated flask. Under the supervision of the teacher, the student immersed a block of ice at a temperature of -12 0C in the liquid air. The temperature of the ice was measured over time.
What is the expected result of the experiment and why?
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A |
The ice will become colder because the extreme difference in temperature will cause the particles of ice to slow down and increase in temperature. |
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B |
The liquid air will boil because the extreme difference in temperature will cause heat to be transferred from the ice to the liquid air and the molecules of the liquid air will begin to leave the liquid. |
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C |
The ice will become warmer because the extreme difference in temperature will cause the particles of ice to gain kinetic energy, speed up and increase in temperature. |
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D |
The liquid air will freeze because the extreme difference in temperature will cause heat to be transferred to the ice and the molecules of the liquid air will move slower. |
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