Which of the following statements are true about a fuel cell (A) It is a device that uses electrochemical reactions to produce electric current (B) It consists of a positive electrode and a negative electrode separated by an electrolyte (C) Just like batteries it needs to be recharged With an electric current Choose the correct option from those given below:?

(A) and (B) only
(B) and (C) only
(A), (B) and (C)
None

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 1 : (A) and (B) only

Fuel Cells:

Fuel cells are based on the electrochemical reaction between hydrogen and oxygen to produce electricity, water vapour, and heat.
These are electrochemical devices with no moving parts that convert the chemical energy of a fuel, such as a hydrogen, and an oxidant, such as oxygen, directly into electricity.
The byproducts of the reaction can be re-utilized by the fuel cell system. Fuel cells are efficient, environmentally friendly, and reliable for power production.
The use of fuel cells has been demonstrated for stationary/portable power generation and other applications.
Fuel cells are different from electrochemical cell batteries in that they consume reactants from an external source, which must be replenished.
The basic features fuet cell is that It consists of two electrodes positive electrode and a negative electrode (usually platinum/carbon) which are porous.
Fuel cells are simple, low-cost devices and can produce an average of 10 watts of power.
A battery chemically stores and releases electricity while a fuel cell produces energy by reacting fuel with air
. A fuel cell, however, will continue to function and produce power as long as the fuel and oxygen are supplied to it.

Hence a fuel cell is a device that uses electrochemical reactions to produce an electric current and consists of a positive electrode and a negative electrode separated by an electrolyte.

4 views Answered 2022-09-04 04:29

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