Samples of the gases H 2 (g) and SO 2 (g) have equal masses and are at the same temperature and pressure. Calculate the following:
-The ratio of the forces per wall impact .

Question

Samples of the gases H 2 (g) and SO 2 (g) have equal masses and are at the same temperature and pressure. Calculate the following:
-The ratio of the forces per wall impact  .

Quizplus · Accepted Answer

The ratio of the forces per wall impact is determined by the ratio of the average speed of each gas molecule. The average speed is determined by the root-mean-square velocity, which is proportional to the square root of the temperature/molar mass. H₂ has a molar mass of 30 g/mol, while SO₂ has a molar mass of 32 g/mol. Therefore, SO₂ has a slightly lower root-mean-square velocity, and thus a lower ratio of forces per wall impact compared to H₂.

Samples of the Gases H2(g) and SO2(g) Have Equal Masses

Samples of the Gases H₂(g) and SO₂(g) Have Equal Masses