temperature is a measure of the kinetic energies of the particles in a substance. however, because the…

temperature is a measure of the kinetic energies of the particles in a substance. however, because the particles in a substance move at different speeds, the particles can have different amounts of kinetic energy. so, what does temperature actually measure? temperature measures the average kinetic energy of the particles in a substance. when the particles in a substance have a higher average kinetic energy, the substance has a higher temperature. imagine a substance made up of 1,000 particles. which of these describes the average kinetic energy of the particles? the sum of the particles kinetic energies divided by 1,000 the kinetic energy of the fastest particle multiplied by 1,000 the total kinetic energy of the particles plus 1,000
Answer
Explanation:
Step1: Recall average - value formula
The formula for the average of a set of values is $\text{Average}=\frac{\text{Sum of values}}{\text{Number of values}}$.
Step2: Apply to kinetic - energy problem
For a substance with 1,000 particles, if $E_1,E_2,\cdots,E_{1000}$ are the kinetic energies of the particles, the sum of their kinetic energies is $S = E_1 + E_2+\cdots+E_{1000}$. The average kinetic energy $\overline{E}=\frac{S}{1000}$, which is the sum of the particles' kinetic energies divided by 1,000.
Answer:
the sum of the particles’ kinetic energies divided by 1,000