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Sch 103 :Physical Chemistry Question Paper

Sch 103 :Physical Chemistry 

Course:Bachelor Of Science In Industrial Chemistry

Institution: University Of Nairobi question papers

Exam Year:2016



UNIVERSITY OF NAIROBI

DEPARTMENT OF CHEMISTRY

SCH:PHYSICAL CHEMISTRY 1

C.A.T

ANSWER ALL QUESTIONS 18th November,2016

Q1. State the following gas law in words and also in the form of an equation.

a)Boyle's law
b)Charles and Gay-Lussac's law
c)Avogadro's law

In each case, indicate the conditions under which the law is applicable and give the
units for each quantity in the equation.
(12 marks)
Q2) a)A 2.10L vessel contains 4.65g of a gas at 1.00 atm and 27 degree celcious

a)Calculate the density of the gas in grams per litre.
b)What is the molar mass of the gas?

b)A sample of natural gas contains 8.24 moles of methane, 0.421 moles of ethane and 0.116 moles of propane.
If the total pressure of the gas is 1.37 atm What are the partial pressure of the gases?
(5 marks)


Q3)The kinetic theory of gases is based on four different assumptions. Briefly describe them. (8 marks)




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