Question

the vandar waal equation of one mole of real gas is (P+a/V^2)(V-b)=RT , where P is the pressure , V is the volume , T is the absolute temperature, R is the molar gas constant and a and b are vander waal's constant what are the dimension of a those of?

Answer 1

Answer:

[ML8T−2]

Explanation:

Since, the dimensions of P must be same as V2a,

Hence,

L6[a]=[ML−1T−2]

[a]=[ML5T−2]

Also, dimension of b must be same as that of V. Hence, [b]=L3.

Thus, [ab]=[ML8T−2]