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Previous Year Physics Question Papers (with solutions) of Kerala State Syllabus of Higher Secondary Examinations. Chapter Name: KINETIC THEORY
Previous Year Questions of March Examinations from 2010 to 2020
Chapter Name: KINETIC THEORY
Q.1 Score: 4 Year: 2011_March
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a) According to the kinetic theory of gases, the molecules of a gas are identical and in random motion. The collisions made by these molecules on the walls of the container exert pressure on the walls. Deduce an expression for the pressure of an ideal gas and also find at what temperature the r.m.s. speed of hydrogen is double its value at STP.
b) For a gas r = 3/2 and R is the universal gas constant, find the values of CP and CV .
Q.2 Score: 3 Year: 2013_March_FY
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Kinetic theory of gases is based on the molecular picture of matter.
a) Write any two postulates of kinetic theory of gases.
b) Write short note on:
     i) Equipartition of energy.
       ii) Mean free path
Q.3 Score: 3 Year: 2014_March_FY
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According to the kinetic theory of gases, gas molecules are always in random motion.
a) State the law of equipartition of energy.
b) What do you mean by ‘mean free path’? Give an equation for the mean free path
Q.4 Score: 2 Year: 2016_March_FY
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Write four postulates of kinetic theory of gases.
Q.5 Score: 1 Year: 2017_March_FY
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Estimate the average thermal energy of helium atom at a temperature of 27°C [Boltzmann constant is 1.38 x 10-23 J/k.]
Q.6 Score: 3 Year: 2018_March_FY
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Based on the kinetic theory of gases, derive an expression for the pressure exerted by an ideal gas
Q.7 Score: 3 Year: 2019_March_FY
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By using the law of equipartition of energy, derive the value of ratio of specific heats of a mono atomic gas
Q.8 Score: 3 Year: 2020_March_FY
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Prove that the average kinetic energy of a molecule is proportional to the absolute temperature of the gas.
Q.9 Score: 3 Year: 2021_March_FY
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Using kinetic theory of an ideal gas, prove that the average kinetic energy of a molecule is proportional to the absolute temperature of the gas.