2021
Discussion
Ask a question about this paper, or help someone else with theirs. Answers are emailed to whoever asked.
No questions yet — be the first to ask.
Need a paper or stuck on a question? Ask here — students reply and you get an email.
Ask about a paperPaper text
FGSTLDY.COm
UNIVERSITY OF THE PUNJAB
Sociate Degree in Arts/Science & B.A./B.Sc. Part- Annual Exam-2021 : Roll No
: Chemistry I
A (Physical Chemistry)
Paper Code: CHEM-I A
Time: 3 Hrs.
Marks: 40
E: Attempt any TWO questions from each section including question No. 1 that is
compulsory. All questions carry equal marks.
www.FGSTUDY.com
(a) Solve the following simultaneous equations. (4)
x+4у=14, 4x-4y=4
Sx+3y=41, 2x+3y=20
Find the slope and intercept of equations. (4)
Ix+3yes FESNOx.com
FGSTUDIY.com
Section-i
2.
(a) What is critical phenomenon? Derive expression for the critical constant of a gas using
a der Waal's constant (04)
Derive Parachor Value for liquld.Parachor Is the molar volume of liquid when Yu= 1
tify it. (04)7.oY.com
GOOD STUD
PGSTUDY.com
3
(a)Brefly explain the Gouy's method for measurement of magnetic susceptibility. Also
ethe applications for magnelic susceptibility measurement. (4)
the energies of linear triatomi molecules are different from nonlinear triatomic molecules.
ve reason. (2)
The density of carbon tetrachloride is 1.59 g/cm' and Its refractive Index is 1.4607. Calculate
molar refraction. (2)
4.
(a) Wheals entropy of vaporization? Explain the change in entropy with temperature and
essure for an ideal gas. (4)
FGSTUDY.com
)Explain the following terms:
(i) fugacity (il) chemical potentlal? (4)
5.
(a) Oiscuss the kinetics of third order reaction when the Initial concentration of all the
actants is same. (6)
Calculate the half-life period of a first order reaction if 60% of the reaction is completed in
minutes. (2)
FGSTLOY.om
Page 1 of 2
P.T.O
FGSTUDY.Cm
Part 1 Chemistry 1 Physical
Visit
