# Does the critical temperature of a gas depend on the amount of the gas taken?

Does the critical temperature of a gas depend on the amount of the gas taken? Or is it independent of it? My book does not specify this point.

I think according to the gas laws, the critical temperature should depend on the amount of gas taken. Am I correct?

• Critical parameters are intensive properties, independent on the system scaling. May 26 at 6:12

$$T_\mathrm{c} = \frac{8a}{27Rb},$$
where $$a,$$ $$b$$ and $$R$$ are constant for the gas. There is no dependency on the amount of substance.
• Critical volume is defined for one mole of the gas at critical temperature, but it's formula is : $3b$. So I am not sure we can base our arguments on these formulae. May 26 at 4:23