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STANDARD Physics Ideal Gas Equation MCQ Question

Type: MCQ-numerical-Medium-Class 11

A gas at 300 K has pressure 4×10−104 \times 10^{-10} N m−2^{-2}. If kB=1.38×10−23k_B = 1.38 \times 10^{-23} J K−1^{-1}, the number of molecules per cm3^3 is of the order of

A

103^3

B

105^5

C

106^6

D

109^9

Correct Answer

Option B

Detailed Explanation

Using the ideal gas equation PV=nRTPV = nRT and converting units appropriately, the number of molecules per cm3^3 is calculated to be of the order of 10510^5.

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