Question

2.5 mol of A mixed with 4.5 mol of B the vapor pressure of A and B are 160 mm of hg and 230 mmof hg respectively calculate the vapor pressure of solution​

Answer 1

Answer:

ExplP  

total

​  

=X  

A

​  

.P  

A

0

​  

+X  

B

​  

.P  

B

0

​  

=0.5×400+0.5×600=500mmHg

Now, mole fraction of A in vapour,

Y  

A

​  

=  

P  

total

​  

 

P  

A

​  

 

​  

=  

500

0.5×400

​  

=0.4

and mole fraction of B in vapour,  

Y  

B

​  

=1−0.4=0.6anation: