An airplane is pressurized with air to 660 mmHg . If air is 21% oxygen, what is the partial pressure of oxygen on the plane?

Question

asked May 14, 2021 103k views

1 Answer

Dotconnor · Answer 1 · 2021-05-19T10:53:09+0000

Answer: The partial pressure of oxygen on the plane is 138.6 mmHg

Step-by-step explanation:

To calculate the partial pressure of the gas, we use the equation given by Raoult's law, which is:

$p_(A)=p_T* \chi_(A)$

where,

p_A = partial pressure of oxygen gas = ?

p_T = total pressure = 660 mmHg

$\chi_A$ = mole fraction of oxygen gas = 21 % = 0.21

Putting values in above equation, we get:

$p_(O_2)=660mmHg* 0.21\\\\p_(O_2)=138.6mmHg$

Hence, the partial pressure of oxygen on the plane is 138.6 mmHg