Question

explain formation of dry ice


please see attachment to answer​

Answer 1

Answer:

Dry Ice is manufactured by compressing and cooling gaseous CO2 under high pressure to initially produce liquid CO2. The liquid is then allowed to expand under a reduced pressure to produce CO2 snow, and finally, this snow is compressed by a hydraulic press into convenient Dry Ice blocks, slices or pellets.

Answer 2

Answer:

Dry ice is made by liquefying carbon dioxide and injecting it into a holding tank, where it's frozen at a temperature of -109° F and compressed into solid ice. Depending on whether it's created in a pelletizer or a block press, dry ice can then be made into pellets or large blocks.