(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. ...
What are the three types of heat transfer? Give an illustrative example for each type. What is welding metallurgy? What is water energy? What is nuclear disintegration? What is recrystallization? What is insolation in climatology? What is the hottest part of a flame?
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...
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 ...
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. ...
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...
8% carb, and 2% protein, so even though they contain some of the other macros, they would be classified as a fat. Another example would be an apple which consists of about 95% carb, 2% protein, and 3% fat. If you didn’t guess it already, that meals apples are classified as a ca...
Just days after the vans were first spotted, an unidentifiedApple employee emailedBusiness Insider, suggesting Apple was working on a project that would "give Tesla a run for its money." The source said that Tesla employees were "jumping ship" to work on a project at Apple that was "too ...