Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

liquid p and q form ideal solution the vapour pressure of pure p and q at 80 degree celcius are 300 mm and 100 mm of hg .suppose the vapour  above the solution is compodes of 1 mole of p and 1 mole of q at 80 degree celcius is collected and condensed.this condensate is heated to 80 degree celcius and the vapour is again condensed to form  a liqiud r. what is the mole fraction of p in r.

Asked by PratibhaPandey | 12 May, 2014, 05:56: PM
answered-by-expert Expert Answer
Dear,

Thanks for asking us a question in Ask the Expert section of TopperLearning.com.

moles of p = n1 = 1 mole
moles of q = n2 = 1 mole
molefraction of p in r = n1 / (n1 + n2 ) = 1 /(1+1) = 0.5
mole fraction of p in the condensate r = 0.5.

Regards

Topperlearning Team.
Answered by Prachi Sawant | 19 May, 2014, 03:03: PM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 12-science - Chemistry
The vapour pressure of pure liquids A and B are 450 and 700 mm Hg respectively, at 350 K. Find out the composition of the liquid mixture if total vapour pressure is 600 mm Hg. Also find the composition of the vapour phase.
Asked by hannamaryphilip | 17 Apr, 2024, 11:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
120 GM Naoh is dissolved in 3dm³ aqcus solution find out its molarity and normality
Asked by sameerteli003 | 08 Apr, 2024, 11:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Why are equimolar solutions of sodium chloride and glucose not isotonic?
Asked by rashmij34 | 27 Feb, 2024, 04:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
At the same temperature, CO2 gas is more soluble in water than O2. Which one of them will have a higher value of KH, and why?   
Asked by sagarmishra | 27 Feb, 2024, 04:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
The formula of degree of dissociation
Asked by kalandi.charan.407 | 08 Feb, 2024, 01:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
state of phenomenon of osmosis
Asked by premkhare2006 | 24 Jan, 2024, 09:50: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
5g of NaOH is dissolved in 500ml of water. find the molarity of the solution
question image
Asked by saritanohar22 | 13 Jan, 2024, 01:25: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
A 10% solution of urea ( molar mass 60) is found to be isotonic with a 5% solution of an unknown non-electrolyte substance.The molecular mass of unknown substance is (a) 40% (b) 50% (c) 45% (d) 30%
question image
Asked by kaushikmisty07 | 31 Dec, 2023, 11:42: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
उस विलयन कि मोलरता की गणना कीजिए जिससे 5 ग्राम NaoH 450 ML विलियन में घुला हुआ है
Asked by kamlesh.kumar.malee | 20 Dec, 2023, 06:59: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
The boiling point of benzene is 353.23k. When 1.80g of a non-volatile solute was dissolved in 90g of benzene , the boiling is raised to 345.11k. Calculate the molar mass of solute (kb=2.53kg mol-1)
Asked by varinder2149 | 10 Dec, 2023, 08:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×