May 2024
Intermediate to advanced
592 pages
25h 27m
English
book
JEE Advanced Chemistry (Physical Chemistry - II), Includes JEE 2021-2024 Questions, Revised Second Edition by Pearson
by Ananya Ganguly
Content preview from JEE Advanced Chemistry (Physical Chemistry - II), Includes JEE 2021-2024 Questions, Revised Second Edition by Pearson
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Solved ProblemS
Problem 1
Phenol associates in benzene to a certain extent to form a dimer. A solution containing 20 × 10–3 kg of phenol in 1.0 kg of benzene has its freezing point depressed by 0.69 K. Calculate the fraction of phenol that has dimerized. (Kf for benzene = 5.12 K kg mol–1)
Solution
Observed mol. mass =
=
= 148.4
Normal mol. mass of phenol = 94
=
=
= 1 +α = 1 +α
= 1 –
α = 0.733 × 100 = 73.3%
Problem 2
Estimate the boiling point of ...
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