Q.

At  1000C   the vapour pressure of a solution of  6.5g of a solute in 100g water is 732mm. If kb=0.52 the boiling point of this solution will be

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

answer is 3.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Given :WB=6.5 g,WA=100 g,ps=732 mm,Kb=0.52Tb°=100°C,p°=760 mmp°-psp°=n2n1⇒760-732760=n2100/18⇒n2=28×100760×18=0.2046 moles ΔTb=Kb×mTb-Tb°=Kb×n2×1000WA(g)Tb-100°C=0.52×0.2046×1000100=1.06Tb=100+1.06=101.06°C
Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon