9.A: pressure directly proportional to absolute temperature according to Charles law R: on heating the gas kinetic energy of the particles increases and these strike the walls of container more frequently does exerting more pressure.

Open in App

Solution

Suggest Corrections

Similar questions

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 particles increases, which in turn results in a greater force exerted on the walls of the container.

Q. Assertion :The pressure of a given mass of gas is directly proportional to the absolute temperature at constant volume. Reason: With the increase in temperature, the average kinetic energy of the molecule increases and hence the average velocity of the molecules increases.

Q. According to the Charles law
pressure is directly proportional to the temperature.......
In cold days temperature decrease then if the pressure is also decreases in tyre of the vehicle.......????

According to Charles's law, the volume of a gas is directly proportional to the number of molecules at constant temperature and pressure.

According to pressure equation, PV=1/3 M Vrms².

=>nRT=1/3 M Vrms²

=> T directly proportional to M Vrms²

According to mean Kinetic energy,

KE(avg)=1/2 M Vrms²

=> KE(avg) directly proportional to M Vrms²

This means.. M Vrms² directly proportional to KE(avg) T

=> M Vrms² /T = KE(avg) × proportionality constant

So this means the avg Kinetic energy is inversely proportional to Absolute Temperature. But actually KE(avg) is directly proportional to T. Please clear my doubt

Join BYJU'S Learning Program