Standard Books Physics Ideal Gas Equation MCQ Question with Solution

A gas at 300 K has pressure $4 \times 10^{-10}$ N m $^{-2}$ . If $k_B = 1.38 \times 10^{-23}$ J K $^{-1}$ , the number of molecules per cm $^3$ is of the order of

A

10 $^3$

B

10 $^5$

C

10 $^6$

D

10 $^9$

Correct Answer

Option B

Detailed Explanation

Using the ideal gas equation $PV = nRT$ and converting units appropriately, the number of molecules per cm $^3$ is calculated to be of the order of $10^5$ .

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STANDARD Physics Ideal Gas Equation MCQ Question

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