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Question

A heat engine transforms heat energy into .......... energy.
  1. Mechanical
  2. Electrical
  3. Chemical
  4. Technical

A
Technical
B
Mechanical
C
Electrical
D
Chemical
Solution
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In thermodynamics and engineering, a heat engine is a system that converts heat or thermal energy—and chemical energy—to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature. Hence, Option A is correct.

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