Question

Which gas has the higher partial pressure in atmosphere?

• A. $N_2$
• B. $O_2$
• C. $H_{2}O$
• D. $C{O}_2$

Answer 1

Answer: (A)

$N_2$ is about $78\%$ in air. Hence its mole fraction is highest, and partial pressure of a gas is directly proportional to mole fraction.