So I know that for water to boil the vapor pressure has to be equal to atmospheric pressure. Does this mean that as the pressure increases, a substance becomes more gaseous? Then why is CO2 liquid at high pressures?

Question

So I know that for water to boil the vapor pressure has to be equal to atmospheric pressure. Does this mean that as the pressure increases, a substance becomes more gaseous? Then why is CO2 liquid at high pressures?

In: Chemistry

Answer 1

As pressure increases, materials prefer to be denser states of matter. Ice may become water, while most liquids become solids, and gases become liquids or solids.