CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The vapour pressure of a mixture of diethyl aniline and water is 1.013×105Nm2 at 99.4oC. The vapour pressure of water at this temperature is 0.992×105Nm2. The grams of steam are necessary to distill over 100 g of diethylaniline are (write answer as nearest integer after dividing by 60).

Open in App
Solution

Let w g of steam be required.The molar mass of diethylaniline is 149.23 g/mol. The number of moles of diethylaniline in 100 g be 100149.23=0.67 moles.
But p0pp0=nn+N
1.0130.9920.992=0.670.67+w18
0.0212=11+w12.06
w+12.06=569.7
w=557.6
Hence, 557.6 grams of steam are necessary to distill over 100 g of diethylaniline.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Liquids in Liquids and Raoult's Law
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon