Question

Which substance contains particles with the highest average kinetic energy?

A. 1 kilogram of ice
B. 1 liter of water
C. 1 liter of water vapor
D. 1 kilogram of snow

Answer 1

Answer: C. 1 liter of water vapor

Step-by-step explanation:

The average kinetic energy increases as follows.

Gas > Liquid > Solid

You can think about it as how fast and freely the molecules are moving in each state, with gases being the greatest.