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Which of the following produces more hea...

Which of the following produces more heat (per unit mass) on burning ?
`"Coal or LPG"`

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The correct Answer is:
LPG
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LAKHMIR SINGH & MANJIT KAUR-SOURCES OF ENERGY -Exercise
  1. Define calorific value of a fuel.

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  2. 'The calorific value of cooking gas (LPG) is 50 kJ/g''. What does it m...

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  3. Which of the following produces more heat (per unit mass) on burning ?...

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  4. Define ignition temperature of a fuel.

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  5. 'The ignition temperature of a fuel is 80^(@)C. What does this mean ?

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  6. Fill in the following blank with a suitable word : The amount of he...

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  7. What is a source of energy ? What are the two main categories of the s...

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  8. State any four characteristics of a good source of energy.

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  9. What is meant by a non-renewable source of energy ? Give two example o...

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  10. What is meant by a renewable source of energy ? Give two example of re...

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  11. What are renewable and non-renewable sources of energy ? Give examples...

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  12. Why are fossil fuels classified as non-renewable sources of energy ?

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  13. Name two energy sources that you would consider to be renewable. Give ...

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  14. Name two sources of energy which you consider to be non-renewable. Giv...

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  15. (a) Classify the following into renewable and non-renewable sources of...

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  16. Coal is said to be formed from the wood of trees. Why then is coal con...

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  17. (a) What is a fuel ? Give five examples of fuels. (b) What are th...

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  18. An example of a renewable source of energy is :

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  19. A non-renewable source of energy is :

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  20. Which of the following is not a renewable source of energy ?

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