Which defines the average kinetic energy of a system's particles?
A. density
B. pressure
C. temperature
D. volume
Answer (1)
The average kinetic energy of a system's particles is defined by its temperature. Temperature is directly proportional to the average kinetic energy. Therefore, the answer is temperature. t e m p er a t u re
Explanation
Understanding the Problem The question asks which of the given options defines the average kinetic energy of a system's particles.
Identifying the Options The options are: density, pressure, temperature, volume, and M (which is not defined).
Recalling the Relationship The average kinetic energy of particles in a system is directly proportional to the absolute temperature of the system.
Concluding the Answer Therefore, temperature defines the average kinetic energy of a system's particles.
Examples
Understanding the relationship between temperature and kinetic energy is crucial in many real-world applications. For example, in engines, the temperature of the gas inside the cylinders is directly related to the kinetic energy of the gas molecules, which determines the power output. Similarly, in weather forecasting, temperature is a key factor in predicting atmospheric conditions and the movement of air masses. By understanding this relationship, we can better design and optimize various systems and processes.
