Science: Industrial gases

• Common Industrial gases include:
• Hydrogen
• Oxygen
• Nitrogen
• Ammonia and
• Carbon Dioxide
• These gases have several industrial uses
• For example oxygen is used in welding and in the oxygen lance process
• They are therefore actively manufactured
• Using various industrial processes for example
• The liquification of air
• The Haber process
• and electrolysis

Electrolysis

Electrolysis of water set up

• Electrolyte solutions contain ions that can carry electrical current through the solution
• An electrolyte is a compound in aqueous form/solution form that allows electricity to pass through it
• When an electric current is passed through an electrolyte chemical changes can
• In some electrolytes
• Result in chemical changes taking place at the electrodes
• Direct Current is used during the electrolysis process
• Cathode- is the electrode connected to the negative terminal of the battery
• The cathode is on the right side in the diagram above
• Anode-is the electrode connected to the positive terminal of the battery
• The anode is to the left in the diagram above
• Electrolysis-the process in which chemical reactions occur when electricity is passed through an electrolyte

To access more topics go to the Combined Science Notes page.