Question

Increase in temperature ofa gas filled in a container would lead to :
(1) increase in its mass
(2) increase in its kinetic energy
(3) decrease in its pressure
(4) decrease in intermolecular distance

Answer 1

Increase in its mass

Answer 2

The increase in temperature increases the kinetic energy of the gas molecules.

Option (B) is correct.

Explanation:

• When the temperature of a gas is increased the molecules get energy and start moving randomly inside the container.
• By increasing the temperature of a gas the collision among the gas molecules increases due to which their kinetic energy also increases.
• The increase in kinetic energy leads to increase in the volume of the gas as the distance between the gas molecules increases and they expand themselves exerting more pressure on the walls of the container.

Thus the increase in temperature increases the kinetic energy of the gas molecules.

Also learn more

500 cm−3 of a gas is collected at 0°C and at a pressure of 72 cm of mercury. What is the volume of the the gas at the same temperature and at a pressure of 76 cm of the same mercury?

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