Answer:
Units of a = [tex]\frac{atm\ L^2}{mol^2}[/tex]
Units of b = [tex]\frac{L}{mol}[/tex]
Explanation:
The Van der Waal's equation is:-
[tex]\left(P+\frac{an^2}{V^2}\right)\left(V-nb\right)=nRT[/tex]
Where,
P is the pressure
V is the volume
n is the number of moles
T is the temperature
R is Gas constant having value
a and b are van der Waal's constant
If pressure is taken in atm and volume in L. So,
[tex]P+\frac{an^2}{V^2}[/tex] represents the pressure correction term. Then,
Units of a = [tex]\frac{atm\ L^2}{mol^2}[/tex]
[tex]V-nb[/tex] represents the volume correction term. Then,
Units of b = [tex]\frac{L}{mol}[/tex]