2 questions-thermodynamics

BITSAT 2015 Help › Thermal physics questions › 2 questions-thermodynamics

1.
If nitrogen gas molecule goes straight up with its rms speed at 0Â°c from the surface of the earth and there are no collisions with other molecules, then it will rise to an approx. height of
(a) 8 km
(b) 12 km
(c) 12 m
(d) 8 m

2.In case of H₂ and N₂ at NTP, which of the following quantities is/are the same?
(a) Average linear momentum per molecule
(b) Average KE per molecule
(c) KE per unit volume
(d) KE per unit mass

#Physics #Thermal physics

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2 Answers

21

mohit_ sharma ·2012-03-28 05:47:48

someone please explain these questions(especially 2.)

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1

rishabh ·2012-03-28 06:25:12

1) consrve energy
2) avg. kinetic energy depends only on temp.

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