How many liters of water produced when 300l of hydrogen burned?

When hydrogen (H₂) burns, it reacts with oxygen (O₂) to produce water (H₂O). The balanced chemical equation for this reaction is 2 H₂ + O₂ → 2 H₂O. From this equation, we see that 2 moles of hydrogen produce 2 moles of water, meaning 1 mole of hydrogen produces 1 mole of water. Since 1 mole of gas at standard temperature and pressure (STP) occupies approximately 22.4 liters, burning 300 liters of hydrogen would yield approximately 300 liters of water vapor.