Answer:
0.91 atm is the partial pressure of just hydrogen gas.
Explanation:
Vapor pressure of water , p= 0.0313 atm
Partial pressure of hydrogen gas = [tex]p_{H_2}[/tex]
Total pressure of the water vapors and hydrogen gas = P = 715 Torr
1 atm = 715 Torr
[tex]715 Torr=\frac{715}{760} atm=0.94 atm[/tex]
According Dalton's law of partial pressure:
[tex]P=p+p_{H_2}[/tex]
[tex]0.94 atm=0.0313 atm+p_{H_2}[/tex]
[tex]p_{H_2}=0.94 atm - 0.0313 atm =0.9087 atm \approx 0.91 atm[/tex]
0.91 atm is the partial pressure of just hydrogen gas.
