Question

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

Answer 1

Answer:

(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.

• A gas is composed of a large number of identical molecules moving at different speeds.
• The space occupied by the gas molecules themselves are negligible compared to the volume of the space they occupy.
• The molecules are independent of one another
• The molecules collide with one another and with the walls of the container.
• The temperature of the gas is a measure of the average kinetic energy of the molecules.

Answer 2

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.

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