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JEE Mains Model Paper 13
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© examsnet.com
Question : 65
Total: 90
An ideal solution contains two volatile liquids A ((P° =100 to rr) and B(P° = 200 torr). Ifmixture contains 1 mole of A and 3 moles of B, then total vapour pressure of distillate is
150 torr
188.88 torr
185.72 torr
198.88 torr
Validate
Solution:
P total =
P
A
°
X
A
+
P
B
°
X
B
= 100 ×
1
4
+ 200 ×
3
4
= 25 + 150 + 175
P distillate = 100 ×
25
175
+ 200 ×
150
175
= 185.72 torr
© examsnet.com
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