試題詳解

21Which of the following statements is not true?
(A) The most probable component of speed ux of a gas is zero.
(B) The (u_x) of a gas is zero.
(C) The broadness of the distribution function f(u_x) correlates with 1/.
(D) If two different gases are at the same temperature, the probability distribution curve of u_x for the lighter gas is broader than that for the heavier gas.
(E) The root mean square of u_x is equal to (k_BT/m) ^1/2.