A heat engine does 20 J of work per cycle while exhausting 30 J of waste...

Question

Question

A heat engine does 20 J of work per cycle while exhausting 30 J of waste heat.

What is the engine's thermal efficiency?

Express your answer using two significant figures. Write the answer as a percent

Answer 1

Answer #1

The thermal efficiency of heat engine is the ratio of workdone by the engine to the heat absorbed by the engine.

→ Heat absorbed: Workdonet heat exhausted The efficiency of heat engine-y -us i S Workdone heat absorbed .-Efficiency-9-.-_-5

Answer 2

Similar Homework Help Questions

A heat engine does 30.0 J of work per cycle while exhausting 40.0 J of waste heat. Part A What is the engine's therm...

A heat engine does 30.0 J of work per cycle while exhausting 40.0 J of waste heat. Part A What is the engine's thermal efficiency? ______
Problem 21.1 - Enhanced - with Feedback A heat engine does 150 J of work per...

Problem 21.1 - Enhanced - with Feedback A heat engine does 150 J of work per cycle while exhausting 380 J of waste heat. You may want to review (Pages 574-577). Part A What is the engine's thermal efficiency? Express your answer using two significant figures. IVO ALPR O 0 ? Submit Request Answer Provide Feedback
A heat engine does 222.83 J of work per cycle while exhausting 615.71 J of heat...

A heat engine does 222.83 J of work per cycle while exhausting 615.71 J of heat to the cold reservior. If a Carnot engine operating with a hot reservior temperature of 493.2 oC has the same efficiency, what is the cold reservior temperature in degrees Celsius?

A heat engine does 264.08 J of work per cycle while exhausting 676.45 J of heat...

A heat engine does 264.08 J of work per cycle while exhausting 676.45 J of heat to the cold reservior. If a Carnot engine operating with a hot reservior temperature of 422.95 oC has the same efficiency, what is the cold reservior temperature in degrees Celsius?
An engine does 20 J of work and exhausts 15 J of waste heat during each cycle. What is the engine's thermal efficiency...

An engine does 20 J of work and exhausts 15 J of waste heat during each cycle. What is the engine's thermal efficiency? If the cold-reservoir temperature is 30 degrees C, what is the minimum possible temperature in degrees C of the hot reservoir?
A heat engine does 30.0 J of work and exhausts 40.0 J of waste heat during...

A heat engine does 30.0 J of work and exhausts 40.0 J of waste heat during each cycle. What is the engine's thermal efficiency? If the cold-reservoir temperature is 30.0 ∘C, what is the minimum possible temperature in ∘C of the hot reservoir?

A certain heat engine operating on a Carnot cycle absorbs 370 J of heat per cycle...

A certain heat engine operating on a Carnot cycle absorbs 370 J of heat per cycle at its hot reservoir at 145 degree C and has a thermal efficiency of 24.0% By how much does the engine change the entropy of the world each cycle? Express your answer to two significant figures and include the appropriate units. What mass of water could this engine pump per cycle from a well 25.0 m deep? Express your answer to two significant figures...
The figure (Figure 1)shows the cycle for a heat engine that uses a gas having γ...

The figure (Figure 1)shows the cycle for a heat engine that uses a gas having γ =1.25. The initial temperature is T1 =300K, and this engine operates at 30 cycles per second. HW21 Item 13 Review Part A The figure (Figure 1)shows the cycle for a heat engine that uses a gas having γ = 1.25. The initial temperature is T1 = 300 K, and this engine operates at 30 cycles per second What is the power output of the...
If a 20% efficient heat engine does 50 J of work each cycle, it requires a...

If a 20% efficient heat engine does 50 J of work each cycle, it requires a heat input of 250 J per cycle, and dumps 200 J per cycle of heat into waste. Group of answer choices A)True B)False

3. An ideal Carnot engine has an input of 150 J of heat per cycle at...

3. An ideal Carnot engine has an input of 150 J of heat per cycle at its high-temperature reservoir, which is maintained at 135 °C. The engine has a thermal efficiency of 22.0%. a. How much work does this engine do per cycle? b. How much heat does this engine output to its low-temperature reservoir per cycle? c. What is the temperature of the low-temperature reservoir? d. How many cycles would this engine have to go through to lift a...