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Grade: 12
        
a steam engine delivers 5.4x10*8J of work per minute and services 3.6x10*9J of heat per minute from its boiler . what is the efficiencyof the engine ?how much hea is wasted per minute ?
7 months ago

Answers : (1)

Thejalakshmi
21 Points
							Efficiency =output energy/input energy=> efficiency =5.4x10*8/3.6x10*9                       = 0.15Thus heat wasted per minute is = 3.6x10*9 -5.4x10*8=30.6x10*8 J
						
5 months ago
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