has particles with the greatest average kinetic energy.       A. Ice water       B. Hot water       C. Warm water       D. Room-temperature water

To determine which option has particles with the greatest average kinetic energy, we need to understand the relationship between temperature and kinetic energy in the context of particles in matter.

1. Understanding Kinetic Energy

• Kinetic energy of particles in a substance is directly related to the temperature of that substance. The higher the temperature, the greater the average kinetic energy of the particles.

2. Analyzing Each Option

• A. Ice water: Typically at 0°C, with low kinetic energy compared to warmer substances.
• B. Hot water: Significantly above 100°C (for example), so it has the greatest kinetic energy.
• C. Warm water: Usually around room temperature (about 20-25°C), with moderate kinetic energy.
• D. Room-temperature water: Around 20-22°C, similar in kinetic energy to warm water.

3. Conclusion

Since hot water has the highest temperature among the given options, it will have the particles with the greatest average kinetic energy.

Final Answer

B. Hot water has particles with the greatest average kinetic energy.