Chemical cells and fuel cells (chemistry only)

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Question 9
Medium

The energy needed for a delivery van powered by a hydrogen fuel cell to travel 150 km is 84 megajoules (MJ).

The energy released when 1 mole of hydrogen gas reacts with oxygen is 280 kJ.

The volume of 1 mole of a gas at room temperature and pressure is 24 dm3\text{dm}^3dm3.

Calculate the volume of hydrogen gas at room temperature and pressure needed for the van to travel 150 km.

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Chemical cells and fuel cells (chemistry only) Questions

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