Answer:
The correct answer is option B.
Explanation:
According to the Dalton's law, the total pressure of the gas is equal to the sum of the partial pressure of the mixture of gases.
[tex]P=p_{1}+p_{2}+..p_{n}[/tex]
Where :
[tex]P[/tex] = total pressure
[tex]p_{1}[/tex] = partial pressure of nitrogen gas
[tex]p_{2}[/tex] = partial pressure of hydrogen gas
[tex]p_{n}[/tex] = partial pressure of nth gas
We have:
P = 2.0 atm, [tex]p_{H_2}=0.8 atm[/tex]
[tex]p_{N_2}=?[/tex]
Using Dalton's law of partial pressure:
[tex]2.0 atm = p_{N_2}+0.8 atm[/tex]
[tex]p_{N_2}=2.0 atm - 0.8 atm = 1.2 atm[/tex]
1.2 atm is the partial pressure of the nitrogen.
