Q. The highest number of helium atoms is in
A) 4 g of helium
B) 2.271098 L of helium at STP
C) 4 mol of helium
D) 4 u of helium
Explanation
[Solution by Claude - not from source] 4 g $=1$ mol; 2.271098 L at STP ($22.7$ L/mol) $=0.1$ mol; 4 mol; 4 u $=1$ atom. Largest is 4 mol. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.