A sealed, rigid steel cylinder filled with an ideal gas is placed in a hot-water…
CHEMISTRY · Single correct · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures
Problem
A sealed, rigid steel cylinder filled with an ideal gas is placed in a hot-water bath. Which of the following best explains why the gas pressure inside the cylinder increases?
(a) Heating increases the repulsive forces between gas particles, so the stronger push between them raises the pressure.
(b) Heating causes each gas particle to expand in size, so the particles occupy more space and press harder on the walls.
(c) Heating increases the speed of the gas particles, so collisions with the walls become more frequent and more forceful.
(d) Heating splits some gas molecules into additional particles, so the greater number of particles leads to more collisions and higher pressure.