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PV=nRT..... Kinetic theory of gases problem.................

PV=nRT..... Kinetic theory of gases problem.................

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Grade:11

1 Answers

Arun
25758 Points
3 years ago
Initial pressure = P   Volume = V       Let the initial temperature be T
     P V = n R T
stroke volume of the pump = v  (let v
Assuming an isothermal process:
    After the pumping out gas of volume v out of  V, the number of moles of the given gas left in the container = n *(V-v)/V
    As Volume V of the container is constant, 
    P1 = P * (V-v)/V = P (1 - v/V)
Again when gas is pumped out pressure will become
    P2 = P1 * (1 - v/V) = P (1- v/V)²
After n pumpings,  Pressure inside the container = P (1 - v/V)ⁿ

 
 

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