Question

sayid recorded the temperatures of four substances in a chart. temperatures of four substances which conclusion is best supported by the data? the particles in substance w have a greater average kinetic energy than the particles in substance z. the particles in substance x have a greater avera kinetic energy than the particles in substance z. the particles in substance w have a lower average kinetic energy than the particles in substance x. the particles in substance z have a lower average kinetic energy than the particles in substance y.

Explanation:

Temperature is a measure of the average kinetic energy of particles. Higher temperature means higher average kinetic energy. Substance W has a temperature of \(12^{\circ}C\), substance X has \(18^{\circ}C\), substance Y has \(9^{\circ}C\), and substance Z has \(20^{\circ}C\).

• For the first option: Substance W (\(12^{\circ}C\)) has a lower temperature than substance Z (\(20^{\circ}C\)), so particles in W have lower average kinetic energy than in Z.
• For the second option: Substance X (\(18^{\circ}C\)) has a lower temperature than substance Z (\(20^{\circ}C\)), so particles in X have lower average kinetic energy than in Z.
• For the third option: Substance W (\(12^{\circ}C\)) has a lower temperature than substance X (\(18^{\circ}C\)), so particles in W have lower average kinetic energy than in X. This is correct as per the temperature - average kinetic energy relationship.
• For the fourth option: Substance Z (\(20^{\circ}C\)) has a higher temperature than substance Y (\(9^{\circ}C\)), so particles in Z have higher average kinetic energy than in Y.

Answer:

The particles in substance W have a lower average kinetic energy than the particles in substance X.