Question

At the critical point for $H _{2}$ gas, value of $Z =3 / 8$. Then, the value of $Z$ for the similar conditions of $CO _{2}, O _{2}$, $SO _{2}$ at their respective critical points will be :

(A) greater than $3 / 8$

(B) smaller $t$ han $3 / 8$

(C) equal to $3 / 8$

(D) nothing can be said

Answer 1

The value of $Z$ for the similar conditions of $CO _{2}, O _{2}$, $SO _{2}$ at their respective critical points will be equal to $3 / 8$. So, The correct option of this question is (C).