Electrical energy is required to decompose water into hydrogen and oxygen.
True or False
Im confused so true or false? I think is true
True
I also think true:)
true
https://www.google.com/search?q=+decompose+water+into+hydrogen+and+oxygen&enablesearch=true
True.
To understand why electrical energy is needed to decompose water into hydrogen and oxygen, we need to look at the process of electrolysis. Electrolysis is the chemical reaction that occurs when an electric current is passed through a substance, causing it to break down into its constituent elements or ions.
In the case of water, it is made up of molecules with two hydrogen atoms bonded to one oxygen atom (H2O). During electrolysis, when an electric current is passed through water, the water molecules are split into their constituent elements: hydrogen (H2) and oxygen (O2). This reaction takes place at the electrodes, which are typically made of metals like platinum or graphite.
At the cathode (negative electrode), water molecules gain electrons and are reduced to form hydrogen gas (H2). The overall reaction at the cathode is:
2H2O(l) + 2e- -> H2(g) + 2OH-(aq)
At the anode (positive electrode), water molecules lose electrons and are oxidized to form oxygen gas (O2) and hydroxide ions (OH-). The overall reaction at the anode is:
2H2O(l) -> O2(g) + 4H+(aq) + 4e-
To enable these reactions to occur, an energy source is needed to overcome the energy barrier and provide the electrons necessary for the reduction at the cathode and oxidation at the anode. This energy is typically supplied in the form of electrical energy.
Therefore, true to the statement, electrical energy is required to decompose water into hydrogen and oxygen through the process of electrolysis.