1. The temperature of a sample of nitrogen gas is a measure of the molecules' average
(1) activation energy
(2) potential energy
(3) kinetic energy
(4) ionization energy
1

The temperature of a sample  is a measure of the molecules' average

kinetic energy.

Increase in the temperature of a sample increases the degree of

randomliness and elastic collision of its atoms. We can define kinetic

energy as the type of energy as a result of its motion. Gas have more

kinetic energy as a result of it having the highest temperature while solids

have the lowest.

This explains why temperature is the measure of the average kinetic

energy of an object.

Read more on link

(3) kinetic energy

Explanation:

The temperature of a sample of nitrogen gas is a measure of the molecules' average kinetic energy. This is one of the postulate of the kinetic theory of gases.