Question

The partial pressures of the gases in a mixture are 0.00461 atm O2, 1.78 atm
N2, and 0.975 atm Ar. What is the total pressure of the mixture?

Answer 1

Answer: The total pressure of the mixture is 2.76 atm

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

$p_{total}=p_A+p_B+p_C...$

Given : $p_{total}$ =total pressure of gases = ?

$p_{O_2}$ = partial pressure of oxygen = 0.00461 atm

$p_{N_2}$ = partial pressure of nitrogen = 1.78 atm

$p_{Ar}$ = partial pressure of argon = 0.975 atm

putting in the values we get:

$p_{total}=0.00461atm+1.78atm+0.975atm$

$p_{total}=2.76atm$

Thus the total pressure of the mixture is 2.76 atm