May 2011
Beginner
492 pages
14h 16m
English
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Problems
Q1. Calculate the RMS velocity of hydrogen at 300 K. The Boltzmann constant is 1.38 × 10−16 ergs per degree and mass of the hydrogen molecule is 3.34 × 10−24 gm.
Ans. 19.3 × 104 cm/sec
Q2. Calculate the RMS velocity of nitrogen at 0°C. The density of nitrogen at NTP is 1.25 gm/litre.
Ans. 4.93 × 104 cm/sec
Q3. Calculate the RMS velocity of the molecules of a gas whose density is 1.4 gm/litre at a pressure of 76 cm of mercury. Density of mercury = 13.6 gm/cc and g = 980 cm/sec2.
Ans. 4.66 × 104 cm/sec
Q4. Calculate the molecular kinetic energy of 1 gm of hydrogen at 0°C (R = 8.32 × 107 ergs /mole/degree).
Ans. 17 × 109 ergs
Q5. One cc of oxygen weighs 0.00144 gm at NTP Find the RMS speed of an oxygen molecule at 100°C.
Ans. 5.37 × 10 ...
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