Question

What is the difference between dry ice and ice??

Answer 1

Regular ice is made from freezing water. Water freezes at zero degrees Celsius."Dry ice" is made from frozen carbon dioxide gas. Carbon dioxide is an odd substance because at regular pressure, it is only found in gas and solid forms: the stuff in the air you breathe and dry ice. So when dry ice "melts" it goes directly into the gas form!At really high pressures, carbon dioxide does form a liquid phase. Anyway, dry ice is much, much colder because carbon dioxide freezes at a lower temperature:-79 degrees Celsius. It's very dangerous to handle dry ice because it will freeze your skin and cause frost bite in less than a minute, causing a painful "dry ice burn.

Answer 2

Answer:

ee Article History

Dry ice, carbon dioxide in its solid form, a dense, snowlike substance that sublimes (passes directly into the vapour without melting) at −78.5 °C (−109.3 °F), used as a refrigerant, especially during shipping of perishable products such as meats or ice cream. In the production of dry ice, advantage is taken of the spontaneous cooling that occurs when compressed, liquefied carbon dioxide at −57 °C (−71 °F) or lower is allowed suddenly to expand to atmospheric pressure: the liquid freezes to a finely divided solid that is compacted into cakes, weighing about 20 kg (45 pounds).