Q. The number of atoms in 0.1 mol of a triatomic gas is (NA = 6.02 × 10²³ mol⁻¹)
A) 1.800 × 10²²
B) 6.026 × 10²²
C) 1.806 × 10²³
D) 3.600 × 10²³
Explanation
[Solution from source] 0.1 mol of molecules × 3 atoms × 6.02 × 10²³ = 1.806 × 10²³ atoms. 6.02 × 10²² is the number of molecules, not atoms. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.