# Question #c1228

Feb 15, 2017

Because the gas molecules move faster.

#### Explanation:

Kinetic energy (K.E.) is the energy of motion. It is proportional to the square of a gas molecule's velocity.

$K . E . = \frac{1}{2} m {v}^{2}$

Now gas velocity is related to the gas constant and the molar mass, M:

$v = \frac{3 R T}{M}$

So as temperature, T, goes up, velocity goes up. According to the first equation, as velocity goes up, K.E. goes up.

Q.E.D.

Mar 30, 2017

They are the same thing.

#### Explanation:

In many fields of study the definition of temperature of an object is the absolute kinetic energy of the molecules of that object.