An ideal gas consists of 2.71 mol of diatomic molecules that rotate but do not oscillate. The molecular diameter is 223 pm. The gas is expanded at a constant pressure of 2.21 x 105 Pa, with a transfer of 239 J as heat. What is the change in the mean free path of the molecules? Number Units This answer has no units . (degrees) e Textbook and Media m kg S Save for Later Attempts: 0 of 3 used Submit Answer m/s m/s^2 N J W N/m kg.m/s or N.s N/m^2 or Pa kg/m^3 g m/s^3 times