⚗️ Fuel Cell Debate Examination
Hydrogen Fuel Cells — Evaluation & Comparison · 15 Questions · 30 Marks
📋 Instructions: Answer all questions. Self-mark using the hidden mark schemes. Cambridge mark scheme language shown in full.
Environmental Impact
5 questions • Core & Supplement
State one environmental advantage of using a hydrogen fuel cell car over a petrol engine car.
Explain why a hydrogen fuel cell does not contribute to the greenhouse effect during operation.
State one gas produced by a petrol engine that causes acid rain.
Compare the environmental impact of a hydrogen fuel cell vehicle with that of a diesel vehicle during operation. [2]
Evaluate whether a hydrogen fuel cell car is truly 'zero emission'. [3]
Storage & Safety
5 questions • Core & Supplement
State two disadvantages of using hydrogen as a fuel compared to petrol. [2]
Explain why storing hydrogen gas safely in a vehicle is technically challenging. [2]
Give one reason why there are currently very few hydrogen filling stations.
A student says: 'Hydrogen is too dangerous to use as a fuel because it is explosive.' Evaluate this statement. [3]
Suggest two reasons why the mass of a hydrogen-powered car may be greater than a similar petrol-powered car. [2]
Overall Efficiency & Carbon Neutrality
5 questions • Supplement
Explain why a hydrogen-powered car may not be completely 'carbon neutral'. [2]
State the overall chemical equation for the reaction in a hydrogen fuel cell.
Compare the efficiency of a hydrogen fuel cell with that of a petrol engine in converting chemical energy to kinetic energy. [2]
Suggest how the carbon footprint of a hydrogen fuel cell car could be reduced. [2]
A government is deciding whether to fund hydrogen fuel cell cars or battery electric vehicles (BEVs). Evaluate the use of hydrogen fuel cell cars as a transport solution, considering environmental impact, safety, practicality, and efficiency. [4]
📊 Exam Progress
0 / 15 questions self-marked · 0 marks earned
🔬 Key Equation to Memorise
The fuel cell reaction. No CO₂, no NOₓ, no SO₂ — only water. This is the key fact for Section A questions.
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