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Physics-Ideal Gas Equation

NEET Physics Ideal Gas Equation MCQ Question

Type: MCQ-diagram based-Hard-Class 11

Refer to the diagram of a gas molecule collision with a wall. If the pressure exerted by the gas is represented as P=13nm⟨v2⟩P = \frac{1}{3} n m \langle v^2 \rangle, what does ⟨v2⟩\langle v^2 \rangle stand for?

Question diagram
A

The average of the squared speeds of the molecules

B

The square of the average speed of the molecules

C

The sum of the squared velocities in all directions

D

The average velocity in a single direction

Correct Answer

Option A

Detailed Explanation

In the NCERT context, ⟨v2⟩\langle v^2 \rangle represents the mean of the squared speed of the molecules, as derived from the pressure equation P=13nm⟨v2⟩P = \frac{1}{3} n m \langle v^2 \rangle.

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