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Benzene and toluene forms nearly an idea...

Benzene and toluene forms nearly an ideal solution. At 300 K, `P_("toluene")^(@)=32.06" mm"` and `P_("benzene")^(@)=103.01" mm"` (of Hg)
(i) A liquid mixture is conposed of 3 mole of tolune and 2 mole of benzene. If the pressure over the mixture at 300 K is reduced, at what pressure does the first vapour form ?
(ii) What is the composition of the first trace of vapour formed ?
(iii) If the pressure is reduced futher,at what pressure does the last trace of liquid dissappear ?
(iv) What is the composition of last trace of liquid ?

A

(i)50.44mmg
(ii)x_("toluene")=0.3181
(iii) P=46.28mmhg
(iv) x_("toluene")=0.852

B

(i)P=42.44mmhg
(ii)x_("toluene")=0.786
(iii) P=38.23mmhg
(iv) x_("toluene")=0.879

C

(i) 60.44 mm Hg
(ii) `x_("toluene")=0.3181`
(iii) P=44.25 mmHg
(iv)`x_("toluene")=0.8281`

D

(i) 74.44 mm Hg
(ii) `x_("toluene")=0.218`
(iii) P=32.33 mmHg
(iv)`x_("toluene")=0.9281`

Text Solution

Verified by Experts

The correct Answer is:
(i) 60.44 mm Hg
(ii) `x_("toluene")=0.3181`
(iii) P=44.25 mmHg
(iv)`x_("toluene")=0.8281`
(i) 60.44 mm Hg
(ii) `x_("toluene")=0.3181`
(iii) P=44.25 mmHg
(iv)`x_("toluene")=0.8281`
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