Why dry ice is used for long distance transportation of perishable goods?
Solid CO2 sublimates without any trace
Solid CO2 is cheaper than common ice
Solid CO2 cooler than common ice
All of the choices
Dry ice or solid CO2 is used for long distance perishable goods transportation because it sublimates and leaves no residue.
What is dry ice? Why is it so called? Give two uses of dry ice.
What is dry ice, why it is called as dry ice?