What is a hydrogen oxygen fuel cell?
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What is a hydrogen oxygen fuel cell?
A fuel cell is a device that generates electricity through an electrochemical reaction, not combustion. In a fuel cell, hydrogen and oxygen are combined to generate electricity, heat, and water.
What are fuel cells Class 12?
Solution 3 The fuel cell is an electrochemical cell in which chemical energy of the fuel is directly converted into electrical energy. It converts the energy from the combustion of fuels such as H2, CO, CH4 etc directly into the electrical energy.
Which is the best type of fuel cell?
Alkaline Fuel Cells Operating at 60-70ºC (140-158ºF), AFCs are among the most efficient type of fuel cells, reaching up to 60% efficiency and up to 87% combined heat and power.
How do hydrogen fuel cells work?
Hydrogen fuel cells produce electricity by combining hydrogen and oxygen atoms. The hydrogen reacts with oxygen across an electrochemical cell similar to that of a battery to produce electricity, water, and small amounts of heat. Many different types of fuel cells are available for a wide range of applications.
What is efficiency of fuel cell?
A conventional combustion-based power plant typically generates electricity at efficiencies of 33 to 35%, while fuel cell systems can generate electricity at ef- ficiencies up to 60% (and even higher with cogeneration).
What is fuel cell Mcq?
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 energy. Fuel cells require a continuous source of fuel and oxygen and can therefore produce electricity continuously.
What are fuel cells write?
A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) into electricity through a pair of redox reactions.
What is the operating temperature of a fuel cell?
Solid oxide fuel cells are constructed entirely from solid-state materials, using an ion-conducting oxide ceramic as the electrolyte, and are operated in the temperature range of 900-1000 °C.
How are hydrogen fuel cells made?
Today, hydrogen fuel can be produced through several methods. The most common methods today are natural gas reforming (a thermal process), and electrolysis. Other methods include solar-driven and biological processes.
