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(A) According to the kinetic theory of gases,pressure $P$ is defined as the force exerted per unit area,$P = \frac{F}{A}$.$F$ is the rate of change of

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Increase in average molecular speed

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(A) According to the kinetic theory of gases,pressure $P$ is defined as the force exerted per unit area,$P = \frac{F}{A}$.$F$ is the rate of change of momentum,which is directly proportional to the velocity of the gas molecules.As the temperature increases,the average kinetic energy of the gas molecules increases,leading to an increase in the average molecular speed.Consequently,the molecules strike the walls of the container more frequently and with greater momentum,resulting in an increase in pressure.

For a fixed number of moles of a gas at constant volume,the pressure of the gas increases with a rise in temperature due to:

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