How do you test the prences of water vapour and heat in the exhaled air
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The limewater turns from clear and colourless to chalky. Air is blown into the limewater through the straw. Let's find out if exhaled air contains water vapour. When you place a mirror in front of your mouth and exhale into it, you will notice that water droplets can be seen on the mirror surface.
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The limewater turns from clear and colourless to chalky. Air is blown into the limewater through the straw. Let's find out if exhaled air contains water vapour. When you place a mirror in front of your mouth and exhale into it, you will notice that water droplets can be seen on the mirror surface.
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