Based on the information in the graph, we can conclude that Substance A is a gas and Substance B is a solid.
The correct answer is C. Particles are farther apart in gases so Substance B is a gas.
The graph shows that the particles in Substance A have a much higher average speed than the particles in Substance B. This is because the particles in Substance A have more kinetic energy, which allows them to move faster.
The average distance between particles is inversely proportional to their density. This means that the particles in Substance A are farther apart than the particles in Substance B. This makes sense, because gases are less dense than solids.
The question probable may be:
The graph below compares the motion of particles in two substances. One substance is a gas and the other is a solid. Particle Motion Particle Speed O a Which statement best describes the two substances? (5 points) b O c A B Od Substance Particles are closer together in solids so Substance B is a solid. Particles are farther apart in solids so Substance A is a solid. Particles are farther apart in gases so Substance B is a gas. Particles are closer together in gases so Substance A is a gas.