研究所、轉學考(插大)◆普通物理學題庫下載題庫

10. An ideal gas is slowly compressed to one-half its original volume with no change in pressure. If the original root-mean-square speed of the gas molecules was v, the new speed after the compression is
(A) v
(B) 2v
(C) v
(D) v/2
(E) v/