Thus, for component 1
p1 µ x1
and      p1 =  
10
p  x1
(1 12)
where 
10
p  is the vapour pressure of pure component 1 at the same
temperature Similarly, for component 2
p2 = p2
0 x2
(1 13)
where p2
0 represents the vapour pressure of the pure component 2