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Nazir Pal
Asked: 2022-11-04T17:54:35+05:30 In:

The vapour pressure of two liquid P and Q are 80 torr and 60 torr respectively. The total vapour pressure obtained by mixing `3` moles of P and 2 mole of Q would be
A. 140 torr
B. 20 torr
C. 68 torr
D. 72 torr

The vapour pressure of two liquid P and Q are 80 torr and 60 torr respectively. The total vapour pressure obtained by mixing `3` moles of P and 2 mole of Q would be
A. 140 torr
B. 20 torr
C. 68 torr
D. 72 torr
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  1. Correct Answer – D
    `xp=3/(3 +2) = 3/5 , xQ = 2/(3 + 2)=2/5`
    `:. “Total” V.P. = (xP xx p_(p)^(o)) + (xQ xx p_(Q)^(0))`
    `V.P. = (3/5 xx 80) + (2/5 xx 60 ) = 48 + 24 = 72 “torr”`

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Sahil Kari
Asked: 2022-11-03T10:18:21+05:30 In:

The vapour pressure of two liquid P and Q are 80 torr and 60 torr respectively. The total vapour pressure obtained by mixing `3` moles of P and 2 mole of Q would be
A. 68 torr
B. 20 torr
C. 140 torr
D. 72 torr

The vapour pressure of two liquid P and Q are 80 torr and 60 torr respectively. The total vapour pressure obtained by mixing `3` moles of P and 2 mole of Q would be
A. 68 torr
B. 20 torr
C. 140 torr
D. 72 torr
Parabola
Leave an answer

Leave an answer

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1 Answer

  1. Correct Answer – D
    `P_(T)=P_(P)xxP_(Q)=P_(P)^(@)xxP+P_(Q)^(@)xxQ`
    `P_(T)=80xx(3)/(5)+60xx(2)/(5)=48+24=72` torr

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