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Select the correct statement (s):A. Average translational kinetic energy of `O_(2)` is more than He if both are taken at same temperature.B. At room temperature He shows positive deviation.C. At constant pressure average translational kinetic energy depends on volume.D. If we increase temperature in a rigid closed vessel then mean free path will remain unchanged. |
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Answer» Correct Answer - B::C::D (A) `KE = (3)/(2) nRT` KE depend on number of moles (B) For He, `Z gt 1` (C) `KE = (3)/(2) nRT = (3)/(2) PV` At constant pressure average translational kinetic energy depends on volume. (D) `lambda = (1)/(sqrt2 pi sigma^(2)N^(**))` `N^(**) = (N)/(V)` at constant volume (rigid closed vessel) `N^(**)` remains constant |
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