What do you meant by dry ice Why Carbondioxide is kept under low pressure?
Answers
Answer:
Dry ice is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower temperature than that of water ice and not leaving any residue. It is useful for preserving frozen foods where mechanical cooling is unavailable.
As per your 2nd question carbon dioxide is not kept in low pressure,it kept in high pressure:
The CO2 solid carbon dioxide is kept under high pressure because it is known as dry ice and to convert this carbon dioxide into solid form, the very low temperature and high pressure is required as it is gas. ... So to prevent the sublimation of dry ice, it is kept under the low temperature and high pressure.
dry ice is cold dense white mist produced by solid carbon dioxide in air, used for Theratical effects