Question 1
Which of the following gases has the lowest average speed at 25 °C?
◦ C
3H
8◦ Kr
◦ CH
3NH
2◦ SO
2Question 2
Which of the following is a characteristic of an ideal gas?
◦ The gas cannot be compressed infinitely.
◦ Inter-particle forces are prominent.
◦ Collisions between gas particles are perfectly elastic.
◦ Collisions between gas particles and container walls are not elastic.
◦ Individual gas particles occupy fixed volume.