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Which of the following statements are not correct?
(a) The ratio of \mathrm{U_{a r}} and \mathrm{U_{m p} } is 2: 3
(b) The unit of vader wacks constant a is \mathrm{\mathrm{L}^{-2} ~atm~ \mathrm{mol}^{-1}}.
(C) The mean square speed of a gas varies linearly with kelvin temperature.
(d) The increasing order of average, most probable and root mean square speeds is \mathrm{\mu_{m n s}<\mu_{a r}<u_{m p}}

Option: 1

a and b only 
 


Option: 2

a  and d only 


Option: 3

b, cand d only 

 


Option: 4

a, b and d only 


Answers (1)

best_answer

(a) \mathrm{U_{\text {ar }} / U_{M P}=\sqrt{8 R T / \pi M} / \sqrt{2 R T / M}=\sqrt{\frac{4}{\pi}}}

(b) The unit a is \mathrm{L^2} atm \mathrm{mol}^{-2} of vander wads cunstant a.

(c) \mathrm{\bar{U}_2=\frac{3 R T}{M}}

(d) The correct order is \mathrm{U_{m p}<U_{a v}<U_{m m s}}.

optian (a). (b) and (d) are comrect.

Posted by

sudhir.kumar

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