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Expression for Pressure exerted by gas

Let N number of molecules of an ideal gas of mass M, be enclosed in a cubical base of sides L. Let ith molecule move with velocity Ci , (see figure 1) and ui , vi , wi be its X, Y, Z components.

Consider only X-component of motion of ith molecule, then the force exerted by ith molecule, on account of its periodic collisions at with front wall and change in its momentum of -2mu i is

\ Force on front wall by all 'N' molecules

\ Pressure on front wall is


12.1 Solids
12.2 Liquids
12.3 Gases
12.4 Gas Laws
12.5 Equation of State :Ideal Gas Equation
12.6 Kinetic Theory of Ideal Gases

Chapter 13

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