Question

What is dry ice? Why it is called so?

Answer 1

Dry Ice:

• Dry ice is simply solid carbon dioxide.
• When it reaches ambient temperature and pressure, it bypasses the melting process and expands directly into carbon dioxide gas.
• Dry ice is frequently used as a substitute for refrigeration for groceries and medical supplies due to its exceptionally low temperature of $-78°\mathrm{C}$.

Why it is named Dry Ice:

• It got its name because when we heat it, it doesn't transform into a liquid; instead, it turns into a gas.
• Sublimation is the term for the transformation of a solid directly into a gas.

Uses of Dry Ice:

• Dry ice is used to keep the sensitive asphalt at the proper temperature during transportation from the manufacturing factory to the job site.
• During breakdowns, use dry ice to keep freezer contents frozen.
• During breakdowns, use dry ice to keep the contents of the refrigerator cool.
• Dry ice is the most efficient and cost-effective way of keeping perishables cooled or frozen.