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What is Good Source of Energy?

In our daily lives, we use energy from different sources for doing work. We use

  • Diesel to run our trains
  • Electricity to light our street lamps
  • Muscular energy for cycling
  • Our choice of a fuel for performing some work depends on many factors. Some of the factors are

  • How much heat does it liberate on burning?
  • Does it create any environment problem by emitting lot of smoke?
  • Is it easily available?
  • Based on the discussion above, we can easily say what the requirements for the good source of energy are. A good source of energy would be one

  • which would do a large amount of work per unit volume or mass
  • be easily accessible
  • be easy to store and transport
  • be more economical

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