Chemistry - Ideal Gas Question with Solution | TestHub

Author-derived A,B,C,D; no source key is printed. Temperature doubles. Mean free path=1/(√2 nσ), with n number density. At fixed volume n is unchanged, so mean free path is unchanged, A. At fixed pressure n halves, so it doubles, B. Per-molecule collision frequency scales n√T: at fixed volume it increases by √2, C; at fixed pressure it becomes 1/√2, D. 'Collision frequency' means per molecule, not total collisions per unit volume.