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

No, you have it backward. Higher pressure = you need more vapor pressure to boil = things tend to stay liquid at higher temps.