Two identical rigid containers each hold the same number of atoms at the same temperature
CHEMISTRY · Single correct · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures
Problem
Two identical rigid containers each hold the same number of atoms at the same temperature. One container is filled with helium while the other is filled with argon. Which statement best describes the pressures in the two containers?
(a) The helium container has a higher pressure because lighter atoms move faster at the same temperature.
(b) The argon container has a higher pressure because its atoms exert larger forces during collisions.
(c) Both containers have equal pressures because pressure depends only on particle number and temperature.
(d) Both containers will have the same pressure only if the masses of gas in the two containers are equal.