how will you demonstrate that water vapour is present in air ? (plz help me this question will give you soo many points)
Answers
answer - take a glass container add 7 to 8 ice cubes in it and the glass full of water when the water will be fully chilled then after sometime time you will see that the water droplets would be shown on the glass container this is because the water vapour in the air condenses and form water
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The presence of water vapour in air can be demonstrated by the following experiment:
We take a steel tumbler and put some well crushed ice in it. Allow the steel tumbler to stand undisturbed for about 5 minutes with the ice in it. We would observe that a large number of tiny drops of water appear on the outer surface of the steel tumbler. This happens because the air around the steel tumbler contains water vapour in it. When these water vapour come in contact with the cold, outside surface of steel tumbler, they condense to form tiny droplets of water.