Kinetic Theory of an Ideal Gas
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PHXI13:KINETIC THEORY

360251 Five gas molecules chosen at random are found to have speeds of \(500,600,700,800\) and \(900\;m{\rm{/}}s\). Then:

1 The rms speed and the average speed are the same.
2 The average speed is \(474\;m{\rm{/}}s\) higher than the rms speed.
3 The rms speed is \(474\;m{\rm{/}}s\) lower than the average speed.
4 The rms speed is \(14\;m{\rm{/}}s\) higher than the average speed.
PHXI13:KINETIC THEORY

360252 The root mean square speed of hydrogen molecule is \(v_{1}\) at temperature \(T K\). The most probable speed of Oxygen molecule is \(v_{2}\) at same temperature. Then \(\dfrac{v_{1}}{v_{2}}\) is equal to:

1 4
2 \(2 \sqrt{6}\)
3 \(3 \sqrt{6}\)
4 2
PHXI13:KINETIC THEORY

360253 To what temperature should the hydrogen at \(327^{\circ}\) be cooled at constant pressure, so that the root mean square velocity of its molecules become half of its previous value.

1 \( - 123^\circ C\)
2 \( 23^\circ C\)
3 \( - 100^\circ C\)
4 \( 0^\circ C\)
PHXI13:KINETIC THEORY

360254 The speed of 5 molecules of gas (in arbitrary units) are as follows :
\(2,3,4,5,6\) The root mean square speed for these molecules is

1 2.91
2 4.00
3 3.52
4 4.24
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PHXI13:KINETIC THEORY

360251 Five gas molecules chosen at random are found to have speeds of \(500,600,700,800\) and \(900\;m{\rm{/}}s\). Then:

1 The rms speed and the average speed are the same.
2 The average speed is \(474\;m{\rm{/}}s\) higher than the rms speed.
3 The rms speed is \(474\;m{\rm{/}}s\) lower than the average speed.
4 The rms speed is \(14\;m{\rm{/}}s\) higher than the average speed.
PHXI13:KINETIC THEORY

360252 The root mean square speed of hydrogen molecule is \(v_{1}\) at temperature \(T K\). The most probable speed of Oxygen molecule is \(v_{2}\) at same temperature. Then \(\dfrac{v_{1}}{v_{2}}\) is equal to:

1 4
2 \(2 \sqrt{6}\)
3 \(3 \sqrt{6}\)
4 2
PHXI13:KINETIC THEORY

360253 To what temperature should the hydrogen at \(327^{\circ}\) be cooled at constant pressure, so that the root mean square velocity of its molecules become half of its previous value.

1 \( - 123^\circ C\)
2 \( 23^\circ C\)
3 \( - 100^\circ C\)
4 \( 0^\circ C\)
PHXI13:KINETIC THEORY

360254 The speed of 5 molecules of gas (in arbitrary units) are as follows :
\(2,3,4,5,6\) The root mean square speed for these molecules is

1 2.91
2 4.00
3 3.52
4 4.24
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PHXI13:KINETIC THEORY

360251 Five gas molecules chosen at random are found to have speeds of \(500,600,700,800\) and \(900\;m{\rm{/}}s\). Then:

1 The rms speed and the average speed are the same.
2 The average speed is \(474\;m{\rm{/}}s\) higher than the rms speed.
3 The rms speed is \(474\;m{\rm{/}}s\) lower than the average speed.
4 The rms speed is \(14\;m{\rm{/}}s\) higher than the average speed.
PHXI13:KINETIC THEORY

360252 The root mean square speed of hydrogen molecule is \(v_{1}\) at temperature \(T K\). The most probable speed of Oxygen molecule is \(v_{2}\) at same temperature. Then \(\dfrac{v_{1}}{v_{2}}\) is equal to:

1 4
2 \(2 \sqrt{6}\)
3 \(3 \sqrt{6}\)
4 2
PHXI13:KINETIC THEORY

360253 To what temperature should the hydrogen at \(327^{\circ}\) be cooled at constant pressure, so that the root mean square velocity of its molecules become half of its previous value.

1 \( - 123^\circ C\)
2 \( 23^\circ C\)
3 \( - 100^\circ C\)
4 \( 0^\circ C\)
PHXI13:KINETIC THEORY

360254 The speed of 5 molecules of gas (in arbitrary units) are as follows :
\(2,3,4,5,6\) The root mean square speed for these molecules is

1 2.91
2 4.00
3 3.52
4 4.24
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PHXI13:KINETIC THEORY

360251 Five gas molecules chosen at random are found to have speeds of \(500,600,700,800\) and \(900\;m{\rm{/}}s\). Then:

1 The rms speed and the average speed are the same.
2 The average speed is \(474\;m{\rm{/}}s\) higher than the rms speed.
3 The rms speed is \(474\;m{\rm{/}}s\) lower than the average speed.
4 The rms speed is \(14\;m{\rm{/}}s\) higher than the average speed.
PHXI13:KINETIC THEORY

360252 The root mean square speed of hydrogen molecule is \(v_{1}\) at temperature \(T K\). The most probable speed of Oxygen molecule is \(v_{2}\) at same temperature. Then \(\dfrac{v_{1}}{v_{2}}\) is equal to:

1 4
2 \(2 \sqrt{6}\)
3 \(3 \sqrt{6}\)
4 2
PHXI13:KINETIC THEORY

360253 To what temperature should the hydrogen at \(327^{\circ}\) be cooled at constant pressure, so that the root mean square velocity of its molecules become half of its previous value.

1 \( - 123^\circ C\)
2 \( 23^\circ C\)
3 \( - 100^\circ C\)
4 \( 0^\circ C\)
PHXI13:KINETIC THEORY

360254 The speed of 5 molecules of gas (in arbitrary units) are as follows :
\(2,3,4,5,6\) The root mean square speed for these molecules is

1 2.91
2 4.00
3 3.52
4 4.24
For More Updates join with Us