Which object will have particles with the highest average kinetic energy?
water at 37°C in a glass
water at 40°C in a swimming pool
an iceberg at 0°C
a drop of water at 90°C
The drop of water at 90°C will have particles with the highest average kinetic energy. This is because temperature is directly proportional to the average kinetic energy of particles. Therefore, as the temperature increases, the average kinetic energy of the particles also increases.
To determine which object will have particles with the highest average kinetic energy, we need to understand the relationship between temperature and kinetic energy.
The average kinetic energy of particles in an object is directly proportional to its temperature. Higher temperature means higher average kinetic energy of the particles, while lower temperature means lower average kinetic energy.
Let's analyze the given options:
1. Water at 37°C in a glass:
- This indicates that the water is at a relatively moderate temperature.
- As the temperature is not mentioned for the other options, we cannot compare the average kinetic energy with certainty. However, based on typical room temperatures, we can assume the kinetic energy of the water particles in a glass at 37°C is moderate.
2. Water at 40°C in a swimming pool:
- Since the water in the swimming pool is at a higher temperature compared to the water in a glass, it is reasonable to assume that the average kinetic energy of particles in the swimming pool water will be higher.
3. An iceberg at 0°C:
- While the temperature of an iceberg is lower than that of water at room temperature, the average kinetic energy of the particles in the iceberg will be lower than that of water at a higher temperature.
4. A drop of water at 90°C:
- This indicates that the water is at a significantly higher temperature compared to the other options.
- As temperature is directly proportional to average kinetic energy, the drop of water at 90°C will have particles with the highest average kinetic energy.
Therefore, the drop of water at 90°C is most likely to have particles with the highest average kinetic energy among the given options.
The average kinetic energy of particles is directly related to their temperature. Therefore, the object that will have particles with the highest average kinetic energy is the one with the highest temperature.
In this case, the drop of water at 90°C will have particles with the highest average kinetic energy.