NEET Physics Ideal Gas Equation MCQ Question
What is the relationship between pressure and the group of molecules in a gas with speed v_x in the x-direction?
Pressure is the rate of momentum transfer from those molecules.
Pressure is the sum of individual molecule speeds.
Pressure is inversely proportional to the number density of molecules.
Pressure is independent of the molecular speed distribution.
Correct Answer
Detailed Explanation
The pressure is defined as the rate of momentum transfer to the wall by the group of molecules moving with speed v_x, as indicated by the equation P = Q /(A Δt) = n m v_x^2.
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