A 20.0-L stainless steel container at 25°C was charged with
2.00 atm of hydrogen gas and 3.00 atm of oxygen gas. A spark
ignited the mixture, producing water. What is the pressure in
the tank at 25°C? If the exact same experiment were per-
formed, but the temperature was 125°C instead of 25°C, what
would be the pressure in the tank?
