TylerBen TylerBen

16-12-2016
Chemistry

contestada

When oxygen reacts with hydrogen, it has the capacity to release 29 kilojoules of energy. Inside a fuel cell, oxygen reacts with hydrogen to produce 23 kilojoules of useful energy. The rest of the energy is lost as heat. What’s the efficiency percentage of the fuel cell?

Respuesta :

ninjaox565 ninjaox565

05-05-2020

Answer:

79

Explanation:

Answer Link

laylay7627 laylay7627

17-12-2020

Answer:

79%

Explanation:

PLATO

further explanation-

useful energy out/total energy in x 100.

substitute the values given in the problem:

23/29 x 100 = 79.31%

≈79%

Answer Link

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