Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Medium-Class 11
What is the total atomic volume in m³ of a mole of hydrogen atoms if the size of a hydrogen atom is approximately 0.5 Å?
A
0.523 × 10⁻²³ m³
B
0.523 × 10⁻²⁹ m³
C
0.523 × 10⁻²¹ m³
D
0.523 × 10⁻²⁶ m³
Correct Answer
Option A
Detailed Explanation
Using the size of a hydrogen atom as 0.5 Å, the volume of one atom is (4/3)π(0.5 × 10⁻¹⁰ m)³. Multiplying by Avogadro's number gives the volume for a mole.
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