(a) What are fuel cells ? Explain the electrode reactions involved in the working ofH2−O2fuel cell. (b) Represent the galvanic cell in which the reaction Zn(s)+Cu2(aq)→Zn2+(aq)+Cu(s)takes place. View Solution (a) What are fuel cells ? Give an example of a fuel cell. ...
Step-by-Step Solution:1. Definition of Fuel Cells: Fuel cells are electrochemical devices that convert the chemical energy of fuels, such as hydrogen, carbon monoxide, or methane, directly into electrical en
104, No. 10 Editorial a tank, for example, fuels such as hydrogen and hydrocarbons. Energy storage (in the tank) and energy conversion (in the fuel cell) are thus locally separated.1 In electrochemical capacitors (or supercapacitors), energy may not be delivered via redox reactions and, ...
Fuel cells are electrochemical devices, so they are not constrained by the maximum thermal (Carnot) efficiency as combustion engines are. Consequently, they can have very high efficiencies in convertingchemical energytoelectrical energy. In the archetypal example of ahydrogen/oxygenproton-exchange membran...
Another source is needed.Researchers are now using electricity to make water into hydrogen.Companies are working on the problem in their own areas. The first com-mercial hydrogen,“fuel cells" for computers and mobile phones have already come on to the market. Auto companies have also invested...
However, solid oxide fuel cells are very stable when in continuous use. In fact, the SOFC has demonstrated the longest operating life of any fuel cell under certain operating conditions. The high temperature also has an advantage: The steam that the fuel cells produce can be channeled into tur...
Carbohydrates Provide Fuel and Structure for Life a) Many simple carbohydrates are important \;\ What are amino acids? Describe their basic parts. What is mutarotation and how does it pertain to carbohydrates? What sugar is used in the backbone of DNA molecules? Give an example of an item ...
Net zero is an ideal state where the amount of greenhouse gases released into the Earth’s atmosphere is equal to the amount removed. Emission removal and reduction through decarbonization efforts are needed to reach net zero.
An important step in this direction has been the development of a device called a fuel cell, which generates electricity using hydrogen. Major car manufacturers have already produced concept cars powered by fuel cells, the Volkswagen Tiguan HyMotion and the Chevrolet Equinox Fuel Cell SUV are two...
If you have read the articles How Cells Work and How Food Works, you have heard about things like amino acids, cell membranes and ATP. Nitrogen, phosphorus and potassium are important because they are necessary for these basic building blocks. For example: Every amino acid contains nitrogen. ...