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Which term defines the amount of mechanical work an engine can do per unit of heat energy it uses? A. specific heat B. conductivity C. thermal expansion D. efficiency

Respuesta :

Answer:

Efficiency

Explanation:

  • The amount of mechanical work an engine can do per unit of heat energy it uses is called its efficiency.
  • It is also defined as the output divided by the total electrical power consumed.
  • In terms of heat, efficiency of engine is given by :

[tex]\eta=1-\dfrac{Q_o}{Q_i}[/tex]

[tex]Q_o\ and\ Q_i[/tex] are output heat and input heat respectively.

Hence, the correct option is (d) "efficiency"

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