How do fuel cells generate electricity mcq
WebMCQs on Fuel Cell. Fuel cell is an electrochemical cell, which can convert energy from the combustion of fuel suchas hydrogen, methanol, etc. directly to electrical energy. Fuel … WebMar 17, 2024 · This cell was used for providing electrical power in the Apollo space program. The water vapours produced during the reaction were condensed and added to the drinking water supply for the astronauts. Fuel cells produce electricity with an efficiency of about 70 % compared to thermal plants whose efficiency is about 40%.
How do fuel cells generate electricity mcq
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WebTypes of Fuel Cells. Fuel cells are classified primarily by the kind of electrolyte they employ. This classification determines the kind of electro-chemical reactions that take place in the cell, the kind of catalysts required, the temperature range in which the cell operates, the fuel required, and other factors. These characteristics, in turn ... WebApr 10, 2024 · The correct answer is 1 and 3 only. Key Points. A microbial fuel cell is a device that converts chemical energy to electrical energy by the action of microorganisms. Hence, statement 1 is correct. They are devices that use bacteria as catalysts to oxidize organic and inorganic matter and generate current. Hence, statement 2 is not correct.
WebOct 4, 2024 · Fuel cells are a clean way to produce power. Fuel cells are similar to batteries in that they produce electricity without combustion or emissions. Unlike batteries, fuel cells do not run down or need to recharge—as long as there’s a constant source of fuel and oxygen. Compared to conventional gasoline vehicles, fuel cell vehicles can even ... WebHow do hydrogen fuel cells produce electricity? The process by which a fuel cell works can be summarised as follows: Hydrogen atoms enter at the anode , while oxygen is fed to the cathode. The hydrogen atoms are separated into protons and electrons at the anode.
WebOct 5, 2024 · Much like a battery, a fuel cell produces electricity through electrochemical reactions, which generate electricity from hydrogen and air without any combustion. Unlike batteries, fuel cells don't need to be recharged and can continuously provide electricity as … WebMCQ on Fuel Cell MCQs on Fuel Cell Fuel cell is an electrochemical cell, which can convert energy from the combustion of fuel such as hydrogen, methanol, etc. directly to electrical …
WebWater vapor and heat. Which of the following best explains energy transformation in hydrogen fuel cells? Hydrogen reacts with oxygen to produce water, which releases energy. Which of the following is a disadvantage of using hydrogen fuel cells? Hydrogen gas is not readily available on Earth.
WebNov 17, 2024 · Hydrogen fuel cells produce electricity by combining hydrogen and oxygen atoms. The hydrogen reacts with oxygen across an electrochemical cell similar to that of … birmingham cosmetic surgery dr. rifaiWebDirect methanol fuel cells. indirect poly meth fuel cells. 1. Phosphoric acid fuel cells. Polymer electrolyte membrane (PEM) fuel cells. Report This Question. QUESTION9 Topic:Fuel Cell Test. dandy fish company bodega bay caWebThe water in the fuel cell is oxidized to a hydroxy radical via the following reaction: H 2 O → OH• + H + + e −. The hydroxy radical then oxidizes carbon monoxide to produce carbon dioxide, which is released from the surface as a gas: CO + OH• → CO 2 + H + + e −. [16] Using these OH groups in the half reactions, they are also expressed as: birmingham cosmetic surgery dundeeWebHow Fuel Cells Work Polymer Electrolyte Membrane (PEM) fuel cells used in automobiles—also called Proton Exchange Membrane fuel cells—use hydrogen fuel and oxygen from the air to produce electricity. The diagram and animation below show how a PEM fuel cell works. View Animation (Flash 5.0 or higher required) Fuel Cell Stacks dandy fish companyWebWhat does a fuel cell use to generate electricity? 1.Diesel, 2.Nuclear fission, 3.Natural gas, 4.Gasoline dandy fishWebA fuel cell converts the chemicals hydrogen and oxygen into water, and in the process it produces electricity. The other electrochemical device that we are all familiar with is the battery. A battery has all of its chemicals stored … dandy fine carsWebHow does a Microbial Fuel Cell generate electricity? a) Through the use of enzymes b) Through the use of chemical reactions c) Through the use of bacterial metabolism d) … birmingham - corporation st