Answer:
9 atm is the total pressure of the combined gases.
Explanation:
According to the Dalton's law of partial pressure , the total pressure of the gas is equal to the sum of the partial pressure of the mixture of gasses.
[tex]P_T=p_{1}+p_{2}....p_{n}[/tex]
where,
[tex]P_T[/tex] = total pressure =
[tex]p_{1}[/tex] = partial pressure of gas-1
[tex]p_{2}[/tex] = partial pressure of gas -2
[tex]p_{n}[/tex] = partial pressure of nth gas
We have :
Pressure of the oxygen gas in flask before mixing = 8 atm
Pressure of the hydrogen gas in flask before mixing = 1 atm
Partial pressure of oxygen gas after mixing = [tex]p_1=8 atm[/tex]
Partial pressure of hydrogen gas after mixing = [tex]p_2=1 atm[/tex]
Total pressure of the mixture : P
[tex]P=P_1+P_2[/tex] (Dalton's law of partial pressure)
[tex]P=8 atm+1 atm=9 atm[/tex]
9 atm is the total pressure of the combined gases.
