The experiment shown in the photograph was set up by a student - Junior Cycle Science - Question b - 2011
Question b
The experiment shown in the photograph was set up by a student.
(i) What changes take place to the water in the beakers A and B as time passes? (3)
(ii) Explain wh... show full transcript
Worked Solution & Example Answer:The experiment shown in the photograph was set up by a student - Junior Cycle Science - Question b - 2011
Step 1
What changes take place to the water in the beakers A and B as time passes?
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Answer
As time passes, the temperature of the water in beaker A, which contains hot water, decreases, meaning that it gets colder. Conversely, the temperature of the water in beaker B, which contains cold water, increases, indicating that it gets hotter.
Step 2
Explain why these changes occur.
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Answer
These changes occur due to the process of heat transfer. Copper, being a good conductor of heat, allows heat energy to flow from the hot water in beaker A to the cold water in beaker B. This transfer continues until thermal equilibrium is reached, meaning that both beakers will eventually approach the same temperature.
Step 3
What instrument would be used, in this experiment, to monitor the changes?
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A thermometer or a temperature probe would be used in this experiment to monitor the temperature changes in both beakers.
Step 4
Name a material to replace copper in this experiment that will not allow these changes to occur.
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Materials such as wood, plastic, or named plastics like nylon can be used to replace copper, as they are poor conductors of heat and will not allow these temperature changes to occur.
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