This is probably really dumb but I wanted to know how dry ice makes that smoke. Is it water vapor? Or something else and why does it burn our skin when we come into contact with it.
In: Chemistry
Carbon dioxide, at atmospheric pressure, doesn’t exist as a liquid state at any temperature. It sublimates directly from a really cold solid into a gas, absorbing energy from it’s surroundings as it does so.
Keep in mind that phase change occurs at roughly -78 Celsius, which is pretty cold. That’s why you don’t want to touch the stuff with bare hands.
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