Heat Engine

Level 1

This heat engine absorbs 1000 1000 J of heat from a high temperature heat source, and releases 600 600 J of heat to a low temperature heat sink. If the heat engine uses 80 80 % of the remaining heat for mechanical work, then what is the thermal efficiency of the heat engine?

40.0 % 60.0 % 32.0 % 80.0 %

Lakshan Dumpa by Lakshan Dumpa , 24, India

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1 solution

Vamsi Krishna
Feb 12, 2014

WORK DONE = 1000 - 600 = 400J,

ONLY 80% IS UTILIZED OF 400J TO DO WORK ==> 400*80/100 = 320J IS USED.

EFFICIENCY = 320/1000 * 100 = 32%

4 Helpful 0 Interesting 0 Brilliant 0 Confused

i used same procedure...

Rohini Bhute - 7 years, 3 months ago

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