Energy resources and sustainability Quiz
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5 questions, one answer each
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1. Which of these is a fossil fuel?
- A. Ethanol
- B. Natural gas
- C. Hydrogen
- D. Uranium
2. What is the only product when hydrogen burns in oxygen?
- A. Carbon dioxide
- B. Carbon monoxide
- C. Sulfur dioxide
- D. Water
3. Burning 1 mole of hydrogen (Mr = 2) releases 286 kJ. What is the energy released per gram?
- A. 143 kJ g⁻¹
- B. 572 kJ g⁻¹
- C. 0.007 kJ g⁻¹
- D. 288 kJ g⁻¹
4. Why can biofuels be described as roughly carbon neutral?
- A. They contain no carbon
- B. They release no gases when burned
- C. The crops absorbed carbon dioxide as they grew
- D. They are made from crude oil
5. Which statement best describes fair access to energy?
- A. Only rich countries use renewable energy
- B. All people can obtain and afford reliable energy
- C. Everyone uses the same fuel
- D. Energy is free for all