A hydrogen-oxygen fuel cell uses $$\(630 \mathrm{dm}^{3}\)$$ of oxygen. The oxygen for the reaction is extracted from clean, dry air. What is the minimum volume of clean, dry air needed to provide this volume of oxygen?
A.
B.
C.
D.
Exam No：0620_s25_qp_11 Year：2025 Question No：12
Answer:
C
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
Solution:
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