At 300 K, about 0.40 % of collisions in a gas sample have energies equal to or…
CHEMISTRY · Single correct · A Level · Chemistry · Kinetics · Kinetics
Problem
At 300 K, about 0.40 % of collisions in a gas sample have energies equal to or greater than 75 kJ mol−1. When the temperature is raised to 310 K, which estimate best describes how this percentage changes?
(a) About 0.44%—a modest 3% rise that mirrors the temperature increase.
(b) About 0.13%—the fraction is predicted to fall as T rises.
(c) About 1.0%—a bit more than double because the high-energy tail is very temperature-sensitive.
(d) About 0.40%—essentially unchanged for such a small ΔT.