Detectors in the walls of four containers (A-D) count the number of collisions between gas molecules and the surfaces of the containers. The detectors coun collisions per second as shown for the containers below. CONTAINER & Collisions per second A & 10 B & 15 C & 20 D & 30 Which container has the lowest pressure? A B C D

The pressure exerted by a gas on the walls of its container is directly related to the number of collisions between the gas molecules and the container walls. Therefore, the container with the lowest number of collisions per second will have the lowest pressure.<br /><br />According to the data provided:<br /><br />- Container A has 10 collisions per second.<br />- Container B has 15 collisions per second.<br />- Container C has 20 collisions per second.<br />- Container D has 30 collisions per second.<br /><br />Container A, with 10 collisions per second, has the lowest number of collisions, and thus, it has the lowest pressure.