Question
Which statement is TRUE?
Particles move faster when they melt than when they evaporate
Particles speed up when an object solidifies
Particles in an object move faster at 50 degrees Celsius than at 20 degrees Celsius
An object melts as the particles slow down
Particles move faster when they melt than when they evaporate
Particles speed up when an object solidifies
Particles in an object move faster at 50 degrees Celsius than at 20 degrees Celsius
An object melts as the particles slow down
Answers
GPT-4o mini
The true statement is:
**Particles in an object move faster at 50 degrees Celsius than at 20 degrees Celsius.**
This statement is true because temperature is directly related to the kinetic energy of particles; as temperature increases, the average speed of the particles also increases.
The other statements are false for the following reasons:
- "Particles move faster when they melt than when they evaporate": Melting involves particles transitioning from solid to liquid, while evaporation involves particles transitioning from liquid to gas. In general, particles in the gas phase (evaporation) move faster than in the liquid phase (melting).
- "Particles speed up when an object solidifies": This is false because, during solidification (freezing), particles lose energy and slow down.
- "An object melts as the particles slow down": This is incorrect; objects melt as particles gain energy and move faster, breaking the bonds holding them in a solid structure.
**Particles in an object move faster at 50 degrees Celsius than at 20 degrees Celsius.**
This statement is true because temperature is directly related to the kinetic energy of particles; as temperature increases, the average speed of the particles also increases.
The other statements are false for the following reasons:
- "Particles move faster when they melt than when they evaporate": Melting involves particles transitioning from solid to liquid, while evaporation involves particles transitioning from liquid to gas. In general, particles in the gas phase (evaporation) move faster than in the liquid phase (melting).
- "Particles speed up when an object solidifies": This is false because, during solidification (freezing), particles lose energy and slow down.
- "An object melts as the particles slow down": This is incorrect; objects melt as particles gain energy and move faster, breaking the bonds holding them in a solid structure.