Efficiency Homework Help: Calculating Carnot Engine Ratio for Heat Engines

In summary, efficiency refers to the ability to do something in the most effective and productive manner, and it is important because it helps save time, resources, and money, and leads to better results. Efficiency in completing homework can be improved by setting specific goals, creating a schedule, eliminating distractions, and taking breaks to avoid burnout. Some common obstacles to achieving efficiency in homework are procrastination, lack of motivation, poor time management, and difficulty understanding the material. Technology can be used to improve efficiency in homework by providing access to online resources, organizing and managing tasks, and facilitating communication with classmates and teachers. To maintain efficiency in the long term, it is important to establish a routine, prioritize tasks, stay organized, and continuously evaluate and adjust
  • #1
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In one cycle, a heat engine absorbs 520J from the high-tempt reservoir and expels 390J to a low-tempt. reservoir. If the efficiency of this engine is 68% of the efficiency of a Carnot engine, what is the ratio of the low tempt. to the high tempt. in the Carnot engine?


e=1-(390/520)=.25 Carnot engine
e=.68*.25=.17 e=.25+.17=.42

.42=1-(Tl/Th)
Tl/Th=1-.42=.58
Is this correct?
 
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  • #2


Yes, your calculation is correct. The ratio of the low temperature to the high temperature in the Carnot engine is 0.58. This means that the low temperature reservoir is 58% of the high temperature reservoir.
 

What is efficiency and why is it important?

Efficiency refers to the ability to do something in the most effective and productive manner. It is important because it helps save time, resources, and money, and leads to better results.

How can efficiency be improved in completing homework?

Efficiency in completing homework can be improved by setting specific goals, creating a schedule, eliminating distractions, and taking breaks to avoid burnout.

What are some common obstacles to achieving efficiency in homework?

Some common obstacles to achieving efficiency in homework are procrastination, lack of motivation, poor time management, and difficulty understanding the material.

How can technology be used to improve efficiency in homework?

Technology can be used to improve efficiency in homework by providing access to online resources, organizing and managing tasks, and facilitating communication with classmates and teachers.

What are some tips for maintaining efficiency in the long term?

To maintain efficiency in the long term, it is important to establish a routine, prioritize tasks, stay organized, and continuously evaluate and adjust study habits to find what works best.

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