Three lines at different values of constant pressure are given, which of the following relation is correct ?

a) P₁=P₂=P₃
b)P₁>P₂>P₃
c)P₃>P₂>P₁
d)​Cannot be predicted

The answer should be b) P₁>P_2>P₃

The graph is plotted between T and V/T. The value for T is same for all the three gases while the ratio of V/T is different. We know that
P is inversely proportional to V and directly proportional to T
So, greater the value of V/T less is the value of P
Therefore, P₁>P_2>P₃