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When you enter a warm room after being o...

When you enter a warm room after being outside on a frosty early morning, your spectacles 'steam up'. Give reason

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(1) On a frosty early morning, the temperature of air outside a warm room is lower.
(2) Hence, when you enter the room from outside, some water vapour in the room condenses on the glass of your spectacles, i.e., the spectacles 'steam up'.
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