What will be the pressure of the gasseous mixture when 0.5L of H2 at 0.8bar and 2.0L of O2 at 0.7bar

What will be the pressure of the gasseous mixture when 0.5L of H2 at 0

1.	What will be the pressure of the gasseous mixture when 0.5L of H2 at 0.8bar and 2.0L of O2 at 0.7bar
Answer» Put P1V1=P2V2.