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Why charcoal is considered better fuel t...

Why charcoal is considered better fuel than wood?

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MODERN PUBLICATION-SOURCES OF ENERGY-EXAMPLE
  1. How can solar energy be harnessed? Mention any two limitations is usin...

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  2. Differentiate between renewable and non-renewable sources of energy.

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  3. Why is the use of wood as a fuel not advised although forests can be r...

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  4. What is greenhouse effect?

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  5. One gram of coal on complete combustion liberates 18kJ of heat. Calcul...

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  6. Explain why blue vitriol changes to white upon heating.

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  7. Give two examples where fractional distillation is used to separate th...

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  8. Explain why it is difficult to burn a piece of wood fresh from a tree?

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  9. Explain why pouring dry sand over the fire extinguishes it?

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  10. Explain why it is difficult to used hydrogen as a source of energy?

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  11. Why charcoal is considered better fuel than wood?

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  12. 48 kJ of energy is produced per minute in a nuclear reactor. Calculate...

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  13. Give one example of a nuclear fusion reaction.

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  14. In one fission or uranium 3xx10^-11J of energy is made available. Calc...

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  15. What is a nuclear fission reaction?

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  16. Mention merits of nuclear fission energy.

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  17. What is nuclear fission? Discuss the source of energy released during ...

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  18. Kapil was feeling proud after the installation of solar water heater o...

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  19. Kapil was feeling proud after the installation of solar water heater o...

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  20. Kapil was feeling proud after the installation of solar water heater o...

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