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easyMCQAIEEE 20042026Chemistry
1 mark

In a hydrogen – oxygen fuel cell, combustion of hydrogen occurs to:

  1. A
    generate heat
  2. B
    remove adsorbed oxygen from electrode surfaces
  3. C
    produce high purity water
  4. D
    create potential difference between the two electrodes

Solution & Step-by-step Explanation

In a hydrogen-oxygen fuel cell, hydrogen and oxygen are reacted electrochemically at the electrodes. This "cold combustion" is used to convert chemical energy directly into electrical energy by creating a potential difference between the electrodes.

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In a hydrogen – oxygen fuel cell, combustion of hydrogen occurs to:
A
generate heat
B
remove adsorbed oxygen from electrode surfaces
C
produce high purity water
D
create potential difference between the two electrodes

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