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A gas bulb of 1-litre capacity contains 2 xx 10^21molecules of nitrogen exerting a pressure of 7.57 xx 10^3Nm^(-2) . Calculate the root-mean-square (rms) speed and the temperature of the gas molecules. If the ratio of the most probable speed to the root-mean-square speed is 0.82, calculate the most probable speed for these molecules at this temperature. |
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Answer» Solution :Use `C = sqrt((3pV)/(MM)) , V = 10^(-3) m^3 , m = (28 xx 10^(-3))/(Av. Const)` `494.18ms^(-1) , 274.15K, 405.22 ms^(-1)` |
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