Question

If a mixture of $CO$ and $N_{2}$ in equal amount have total $1 \,atm$pressure, then partial pressure of $N_{2}$ in the mixture is

• A. 1 atm
• B. 0.50 atm
• C. 2 atm
• D. 3 atm

Answer 1

Answer: (B)

0.50 atm

Answer 2

Partial pressure of a component = Mole fraction $\times$ Total pressure or, $P_{N_2}=\frac{\text{No. of moles of} N_{2}}{\text{Total no. of moles }} \times1$ or, $P_{N_2}=\frac{1}{2}\times1$ $=0.5$