Which statements about a hydrogen-oxygen fuel cell are correct? 1 The main form of energy released by the fuel cell is heat. 2 The reaction is a redox reaction. 3 An acidic gas is produced. 4 Water is the only chemical product.
A.
1 and 3
B.
1 and 4
C.
2 and 3
D.
2 and 4
Exam No：0620_s24_qp_11 Year：2024 Question No：11
Answer:
D
Knowledge points:
4.2.1. State that a hydrogen–oxygen fuel cell uses hydrogen and oxygen to produce electricity with water as the only chemical product
4.2.2 Describe the advantages and disadvantages of using hydrogen–oxygen fuel cells in comparison with gasoline / petrol engines in vehicles
Solution:
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