Oxygen production during electrolysis may be lower than expected due to factors such as inefficient electrolyte composition or concentration, inadequate electrode material or size, or improper current flow. It is important to ensure that all conditions are optimized for efficient electrolysis process to achieve expected oxygen yield.
Alkaline electrolysis is more cost-effective but less efficient than PEM electrolysis. Alkaline electrolysis has lower efficiency due to higher energy consumption, while PEM electrolysis is more efficient but comes at a higher cost.
Aluminium is extracted using electrolysis because it has a high melting point, making it more energy efficient to use electrolysis rather than the blast furnace. The electrolysis process involves passing an electric current through a molten aluminum oxide mixture, which separates the aluminum from the oxygen.
Electrolysis is commonly used to produce pure elements from their compounds. It is used in various industrial processes to extract metals like aluminum, copper, and sodium from their ores. Additionally, electrolysis is used in the production of hydrogen and chlorine gas.
Hematite is composed of oxygen and iron, which is less abundant than aluminum but more abundant than calcium in Earth's crust.
Thiophene is less basic than furan because sulfur is less electronegative than oxygen, making the lone pair on the sulfur less available for donation to a proton. Additionally, the sulfur atom is larger in size compared to oxygen, which makes the lone pair less localized and less available for protonation.
Less space than I expected.
Because the electrolysis of water reaction always produces twice as much hydrogen (by volume or by mole) as they do oxygen. H2O(l) -> H2(g) + 1/2 O2(g)
An oxygen deficient atmosphere has an oxygen concentration less than the normal level of around 21%.
When the frequency is less than expected.
Alkaline electrolysis is more cost-effective but less efficient than PEM electrolysis. Alkaline electrolysis has lower efficiency due to higher energy consumption, while PEM electrolysis is more efficient but comes at a higher cost.
Helium is lighter (less dense) than oxygen & nitrogen.
Aluminium is extracted using electrolysis because it has a high melting point, making it more energy efficient to use electrolysis rather than the blast furnace. The electrolysis process involves passing an electric current through a molten aluminum oxide mixture, which separates the aluminum from the oxygen.
Yes
The second electron gain of an oxygen atom would be expected to be less negative. The reason for this outcome is that the oxygen atom gaining a second electron already has one electron and thus a negative charge. This negative charge repels the second electron to some extent, making the enthalpy of this process less negative than when the first electron was added to the neutral oxygen atom.
There were some real problems, but less than expected.
A load or a resistance
In theory, the energy produced by creating four oxygen-hydrogen bonds after breaking two Oxygen-oxygen and hydrogen-hydrogen bonds in the reaction O2 + 2H2 -> 2H2O (hydrogen combustion in oxygen) is exactly the same than the energy needed to break four oxygen-hydrogen bonds to create two oxygen-oxygen and hydrogen-hydrogen bonds in the reaction 2H2O -> O2 + 2H2 (water electrolysis) However, you will always have great energy loss during electrolysis (an important part of your energy will be used to warm up your water) and in getting back your energy from your oxygen and hydrogen gas (a combustible battery or a motor will warm up too).