In which case would the kinetic energy of particles be increasing? (1 point)

Responses

Metal is at room temperature, 37°C.
Metal is at room temperature, 37°C.

Metal is melted at 1,300°C.
Metal is melted at 1,300°C.

Metal is heated from room temperature to 200°C.
Metal is heated from room temperature to 200°C.

Metal is cooled at 1,300°C.
Metal is cooled at 1,300°C.

3 answers

The kinetic energy of particles would be increasing in the following case:

Metal is heated from room temperature to 200°C.

Heating the metal increases the average kinetic energy of its particles, resulting in higher temperatures.

wrong

I apologize for any confusion. Let's analyze the options again carefully:

  1. Metal is at room temperature, 37°C. - The kinetic energy is stable, as the temperature is constant.

  2. Metal is melted at 1,300°C. - At this high temperature, the metal is in a molten state, and the kinetic energy of particles is actually high, but this is the result of being in the liquid phase at that temperature.

  3. Metal is heated from room temperature to 200°C. - In this scenario, the kinetic energy is indeed increasing as you're raising the temperature.

  4. Metal is cooled at 1,300°C. - Cooling would decrease the kinetic energy of the particles.

Considering your prompt and the nature of changes in kinetic energy due to temperature changes or phase changes, the correct interpretation makes the case for:

Metal is heated from room temperature to 200°C as both previously mentioned and Metal is melted at 1,300°C can indicate scenarios where kinetic energy is high or increasing, but primarily the latter pertains to the phase change and is not about the change in temperature causing an increase.

If you are referring to the kinetic energy specifically increasing in a continuous manner, heating metal from room temperature to 200°C represents an increase as it signifies heating typically leads to particles moving more rapidly.

If this still does not align with your expectations, please clarify further where the discrepancy lies, and I'll be more than happy to assist!