Dry ice vaporising (subliming). Carbon dioxide is a colourless gas at room temperature but becomes a liquid under compression. If the liquid is allowed to expand rapidly to atmospheric pressure,it cools suddenly and freezes to dry ice - a white solid. Dry ice sublimes (turns straight into a gas from the solid state) at -78.5 degrees Celsius (195 degrees Kelvin) | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |