Question

CO2 is a gas. Give three reasons (a) To justify it.

(b) What happens when high pressure is applied on carbon dioxide gas?

Answer 1

1).this is in gaseous form
2). to maintain ecological balance between o2 and co2
3).it contain oxygen (o2) oxygen is gaseous

Answer 2

The answer is that it depends on the ending conditions.  Since pressure and temperature are what are called state functions, all carbon dioxide behaves the same at those specifications (all other things, such as the mass, being equal) no matter how the carbon dioxide started out.