Respuesta :
Answer : The partial pressure of helium in this mixture is, 12.4 atm.
Explanation : Given,
Partial pressure of oxygen = 0.10 atm
Total partial pressure = 12.5 atm
Now we have to calculate the partial pressure of helium.
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 gasses.
[tex]P_T=p_{He}+p_{O_2}[/tex]
where,
[tex]P_T[/tex] = total partial pressure = 12.5 atm
[tex]P_{O_2}[/tex] = partial pressure of oxygen = 0.10 atm
[tex]P_{He}[/tex] = partial pressure of hydrogen = ?
Now put all the given values is expression, we get the partial pressure of the helium gas.
[tex]12.5atm=p_{He}+0.10atm[/tex]
[tex]p_{He}=12.4atm[/tex]
Therefore, the partial pressure of helium in this mixture is, 12.4 atm.
