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Question
Design an experiment to show that air contains water vapour. [3 MARKS]
Design an experiment to show that air contains water vapour. [3 MARKS]
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Solution
Details of Experiment : 1 Mark
Explanation : 2 Marks
Take ice cold water in a metallic tumbler and keep it out in the open air.
Water droplets are seen condensing on the outer surface of the tumbler.
This is because when the water vapour present in the air come in contact with the cold metallic surface of the tumbler, it loses heat energy and changes its physical state from gas to liquid.
Details of Experiment : 1 Mark
Explanation : 2 Marks
Take ice cold water in a metallic tumbler and keep it out in the open air.
Water droplets are seen condensing on the outer surface of the tumbler.
This is because when the water vapour present in the air come in contact with the cold metallic surface of the tumbler, it loses heat energy and changes its physical state from gas to liquid.
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