Answer:
The correct answer is option A.
Explanation:
Total pressure of mixture = p = 378 kPa
Partial pressure of the oxygen gas = \(p^o_{O_2}=212 kPa\)
Partial pressure of the hydrogen gas = \(p^o_{H_2}=101 kPa\)
Partial pressure of the nitrogen gas = \(p^o_{N_2}=?\)
As we know that total pressure is sum of partial pressures exerted by all the individual gases.
\(p=p^o_{O_2}+p^o_{H_2}+p^o_{N_2}\)
\(378 kpa=212 kPa+101 kPa+p^o_{N_2}\)
\(p^o_{N_2}=378 kPa - 212 kPa-101 kPa=65 kPa\)
65 kPa the partial pressure exerted by nitrogen.
