Question

How many moles of helium gas occupy $22.4L$ at $0^{\circ }C$ and 1 atm pressure?

• A. 0.11
• B. 1.11
• C. 0.90
• D. 1.0

Answer 1

Answer: (D)

$\because 22.4L$ is the volume that is occupied by one mole of a gas at $0^{\circ }C$ and 1 atm pressure.
$\therefore 22.4L$ of He at $O^{\circ }C$ and 1 atm pressure $=1mol$