JEE Questions for Physics Kinetic Theory Of Gases Quiz 14 - MCQExams.com

At what temperature the molecules of nitrogen will have the same rms. velocity as the molecules of Oxygen at 127o C.
  • 273o C
  • 350o C
  • 77o C
  • 457o C
The temperature of an ideal gas is increased from 27o C to 127o C, then percentage increase in vrms is
  • 33%
  • 11%
  • 15.5%
  • 37%

Physics-Kinetic Theory of Gases-76317.png
  • 2
  • 4
  • 0.5
  • 1
At which temperature the velocity of O2 molecules will be equal to the rms velocity of N2 molecules at 0o C
  • 93o C
  • 40o C
  • 39o C
  • can not be calculated.
At what temperature, pressure remaining unchanged, will the rms velocity of a gas be half its value at Oo C ?
  • 204.75 K
  • 204.75o C
  • –204.75 K
  • –204.75o C
The rms velocity of gas molecules is 300 ms–1. The rms velocity of molecules of gas with twice the molecular weight and half the absolute temperature is
  • 300 ms–1
  • 150 ms–1
  • 600 ms–1
  • 75 ms–1
Calculate the temperature at which rms velocity of SO2 molecules is the same as that of O2 molecules at 27o C. Molecular weights of Oxygen and SO2 are 32 g and 64 g respectively
  • 327o C
  • 327 K
  • 127o C
  • 227o C

Physics-Kinetic Theory of Gases-76323.png
  • 0.45
  • 2.24
  • 3.16
  • 0.32
When the temperature of a gas is raised from 27o C to 90o C , the percentage increase in the rms velocity of the molecules will be
  • 15%
  • 17.5%
  • 10%
  • 20%
The temperature at which the rms speed of hydrogen molecules is equal to escape velocity on earth surface will be
  • 5030 K
  • 10063 K
  • 1060 K
  • 8270 K
What is the mean free path and collision frequency of a nitrogen molecule in a cylinder containing nitrogen at 2 atm and temperature 17o C? Take the radius of nitrogen molecule to be 1 Å. Molecular mass of nitrogen = 28, kB = 1.38 × 10–23 JK–1, 1 atm = 1.013 × 105 Nm–2

  • Physics-Kinetic Theory of Gases-76327.png
  • 2)
    Physics-Kinetic Theory of Gases-76328.png

  • Physics-Kinetic Theory of Gases-76329.png

  • Physics-Kinetic Theory of Gases-76330.png
The radius of a molecule of Argon gas is 1.78 Å . Find the mean free path of molecules of Argon at 0o C temperature and 1 atm pressure. kB = 1.38 × 10–23 JK–1

  • Physics-Kinetic Theory of Gases-76332.png
  • 2)
    Physics-Kinetic Theory of Gases-76333.png

  • Physics-Kinetic Theory of Gases-76334.png

  • Physics-Kinetic Theory of Gases-76335.png

Physics-Kinetic Theory of Gases-76342.png

  • Physics-Kinetic Theory of Gases-76343.png
  • 2)
    Physics-Kinetic Theory of Gases-76344.png

  • Physics-Kinetic Theory of Gases-76345.png

  • Physics-Kinetic Theory of Gases-76346.png
For a gas if ratio of specific heats at constant pressure and volume is γ, then value of degrees of freedom is

  • Physics-Kinetic Theory of Gases-76348.png
  • 2)
    Physics-Kinetic Theory of Gases-76349.png

  • Physics-Kinetic Theory of Gases-76350.png

  • Physics-Kinetic Theory of Gases-76351.png
From the following P – T graph, what inference can be drawn
Physics-Kinetic Theory of Gases-76353.png
  • V2 < V1
  • V2 = V1
  • V2 > V1
  • none of these
0:0:1


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