Question

carbon dioxide in solid state is known as ice so as to prepare dry ice carbon dioxide gas should be treated as (a)decrease in pressure increase in temperature (b)increase in pressure decrease in temperature (c) increase in pressure and temperature (d)decrease in pressure and temperature​

Answer 1

Answer:

increase in pressure and decrease in temperature

Answer 2

Solid CO2gets converted into the gaseous state by decreasing the pressure to 1 atmosphere without coming into the liquid state. Hence, solid carbon dioxide is also known as dry ice.