Question

With respect to the given assertion and reason. Choose the correct option.
Assertion [A]: With an increase in the temperature of a gas inside a container, its pressure also increases.
Reason [R]: Upon heating, the kinetic energy of the gas molecules increases, which in turn results in a greater force exerted on the walls of the container.

• A. (1) and (2) are true and (2) explains (1).
• B. (1) and (2) are true but (2) does not explain (1).
• C. Only (1) is true .
• D. Only (2) is true.

Answer 1

The correct option is A

(1) and (2) are true and (2) explains (1).

The pressure inside a container is due to the fact that the gas molecules which are always in motion hit and exert the force on the walls of the container. When the temperature is increased, the vibrational kinetic energy of molecules increases. This increases the pressure inside the container and the force exerted by the particles on the walls of the container.