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Grade: 10
        
1 litre of glass bulb contains 2*10^21  molecules at a pressure of   7.57*10^3  N/m^2     find the RMS and the most probable velocities  and temparature of the gas //???????
 
one year ago

Answers : (1)

Vikas TU
6869 Points
							
Vrms = root(3RT/M) ….............(1)
Now from ideeal gas eqn. we get,
7.57*10^3  * 1 = 2*10^21/6*10^23 RT.................(2)
From eqn. (2) and (1) we get,
with M = 28 gm (Nitrogen gas molar mass).
Vrms = 493.276 m/s
and 
T = 276.61 x 10^5 x 10^-5 => 276.61 K.
one year ago
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