How can we test the presence of water in air?
Answers
Answer:
Take ice cubes in a beaker and kept it open place for some time. You will notice that around the beaker there are some water droplets. This droplets formed are due to condensation of water vapor around the beaker. This confirmes the presence of water vapour in air.
Answer:
It can be tested by taking 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.