Question

Equal amounts of four gases are placed in identical containers at the temperatures that are noted below.

Samples of Gases at Different Temperatures
Gas
Temperature (°C)
P
10.2
Q
25.4
R
25.9
S
33.2

Molecules of which gas would exert the greatest collision force?
gas P
gas Q
gas R
gas S

Answer 1

gas S

Explanation: collision force relates to molecular kinetic energy, which increases with absolute temperature (K). S has the highest temperature (33.2°C ≈ 306.3 K), so its molecules have the greatest average kinetic energy and exert the largest collision force.