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• CBSE×
• Class 11 Science×
• Physics×
• Kinetic Theory×
• Kinetic Theory Of Gases×

# Kinetic Theory Of Gases Free Doubts and Solutions

## Derive allotropic constant in terms of degree of freedom and hence find it's value for monotonic diatomic and polyatomic gases . 4. Derive the expression for mean free path for a gas .

Asked by karanchandra34 29th January 2019, 11:10 PM

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## Consider the time instant when you first started your bike at t=0 for which of following intrevels your average speed and velocity are equal in magnitude    A) t=0 to t=10 min B) t=0 to t=40 min C) t=0 to t=60 min D) t = 40 to t= 60min

Asked by Sudhanshu Shridhar 30th May 2015, 4:15 AM

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## An electric bulb of volume 250 cm3 was sealed off during manufacture at the pressure of 10-3 mm of mercury at 27oC.  Find the number of air molecules in the bulb.

Asked by Topperlearning User 8th May 2015, 11:19 AM

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## Two vessels of the same size are at the same temperature.  One of them holds 1 kg of H2 gas and other holds 1 kg of N2 gas. (i)  Which of the vessels contains more molecules? (ii)  Which of the vessels is under greater pressure and why? (iii)  In which vessel is the average molecular speed greater?  How many times is it greater?

Asked by Topperlearning User 7th May 2015, 5:11 PM

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## On the basis of the kinetic theory of gases derive an expression for the pressure exerted by a gas in terms of density and velocity of the molecules.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## The absolute temperature of a gas is made four times.  How many times will (a)  its total kinetic energy become? (b)  root mean square velocity of its molecules? (c)  How will pressure change?

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## At what temperature, will the root mean square velocity of a gas at 0oC be half its value, if the pressure remains constant?

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## Calculate the root mean square velocity of oxygen molecules at 27oC.  Take the density of oxygen to be 0.001424 g/cc.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## If three molecules have velocities 0.5, 1 and 2 km/s respectively, calculate the ratio of the root mean square speed and average speed.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## In terms of the kinetic theory of gases, explain why the pressure of a gas in a closed container increases when the gas is heated?

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## The volume of a gas sample is increased.  Why does the pressure, which is exerted by the gas, decrease?

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## When a gas is suddenly compressed, its temperature rises. Why?

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## Is the r.m.s speed same as the average speed?

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## The graph shows the variation of PV with P of given masses of three gases A, B and C.  The temperature is kept constant.  Which of these is ideal graph?

Asked by Topperlearning User 4th June 2014, 1:23 PM