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Question

State the energy change in a petrol engine of a running car.


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Solution

Solution:

  1. The chemical energy generated by petrol/any form of gas is converted to heat.
  2. Next, the heat is converted to mechanical energy.
  3. The mechanical energy is essentially the kinetic energy that moves the car.
  4. Some of the energy changes and energy losses are shown below:
Spark-ignition engine control

Therefore, Chemical Energy is eventually converted to Kinetic Energy in a petroleum car engine.


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