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Class XI Physics Kinetic Theory of Gases 3

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Question 1

The correct curve between V/T and 1/V for a gas at constant pressure is –

Question 2

The gas equation

= constant is true for a constant mass of an ideal gas undergoing –

Question 3

The kinetic energy of rotation of diatomic gas at 27 ° C will be (k = 1.38 × 10^–23Joule/k)

Question 4

A gas is found to obey the law P²V = constant. The initial temperature and volume are T₀ and V₀. If the gas expands to a volume 3V₀, then the final temperature becomes

Question 5

N moles of a diatomic gas in a cylinder are at a temperature T. Heat is supplied to the cylinder such that the temperature remains constant but n moles of the diatomic gas get converted into monoatomic gas. What is the change in the total kinetic energy of the gas?

Question 6

The density of an unknown gas at 97 ° C and 0.95 atmosphere is 2.5 gm/lit. Assuming the gas to be an ideal one, the molecular weight of this gas should be nearly (in g/mol) –

Question 7

Hydrogen gas is filled in a vessel at 20 ° C at a certain pressure. Some gas is allowed to escape from the vessel and the temperature of the vessel is then raised to 40 ° C to obtain the same pressure. Then the fraction of the gas allowed to escape is –

Question 8

The rms speed of oxygen molecule in a gas is v. If the absolute temperature is doubled and the oxygen molecule dissociate into oxygen atoms, the rms speed will become –

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Feb 26JEE & BITSAT