The quantity Nm is the total mass of the molecules of the gas, i.e. the mass of
Question:
The quantity Nm is the total mass of the molecules of the gas, i.e. the mass of the gas. At room temperature, the density of air is about 1.29 kg m−3 at a pressure of 105 pa.
a. Use these figures to deduce the value of 2> for air molecules at room temperature.
b. Find a typical value for the speed of a molecule in the air by calculating √2>. How does this compare with the speed of sound in air, approximately 330 m s−1?
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a To find the value of 2 for air molecules at room temperature we can use the ideal gas law PV nRT w...View the full answer
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Related Book For 
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
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