Of the 3 states of matter, solid, liquid, and gas, which has the lowest kinetic energy for a given substance?

1 Answer
Apr 14, 2016

The kinetic energy is the lowest at the solid state.

Explanation:

The kinetic energy ($K . E .$) is given by: $K . E . = \frac{3}{2} R T$.

Where, $R = 8.3145 \frac{J}{m o l \cdot K}$ is the universal gas constant, and $T$ is the temperature.

As could be seen from the expression of $K . E .$, since for the same matter, solid state exists at a lower temperature than liquid state and than gaseous state, therefore, the kinetic energy is the lowest at the solid state .