An engine absorbs 3500J of heat each cycle and expels 1200J. (a) How much work does it do in one cycle? (b) If it is a reversible heat engine and the hot reservoir is at 750K, what is the temperature of the cold reservoir?

An engine absorbs 3500J of heat each cycle and expels 1200J. (a) How much work does it do in one cycle? (b) If it is a reversible heat engine and the hot reservoir is at 750K, what is the temperature of the cold reservoir?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter18: Heat Engines, Entropy, And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: "A heat engine accepts 200 J of heat from a hot reservoir, does work, and releases 160 J to a cold…

A: Given Heat taken Q1 = 200 J Heat given to sink Q2 = 169 J

Q: A heat engine has quarter the thermal efficiency of a carnot engine operating between 85C and 445C.…

A: Given values - Tcold=85o C =85+273=358 K THot=445o C=445+273=718 K Therefore, Efficiency of Carnot…

Q: You want to design an ideal Carnot heat engine that wastes only 35.0% of the heat that goes into it.…

Q: Calculate the net work output (in ) of a heat engine following path ABCDA in the figure, where v,-…

Q: Suppose that there are two very large reservoirs of water, one at a temperature of 91.0 ∘C and one…

Q: A thermal cycle has an efficiency equal to 45.0 % of that a Carnot engine that operates between the…

Q: How much heat transfer occurs to the environment per day by an electrical power station that uses…

A: Given: The total amount of heat transfer is 1.2×1014 J. The efficiency of the engine is 42%.…

Q: A heat pump takes in 440J of heat from a low temp reservoir in each cycle and uses 200J of work to…

Q: If the engine does 5.0 J of work per cycle, how much heat per cycledoes it absorb from the…

Q: A steam engine absorbs 7.91×105J and expels4.99 × 105J in each cycle. Assume that all ofthe…

Q: Calculate the maximum possible efficiency of a heat engine that uses surface lake water at 20.7°C as…

Q: A heat pump that operates based on an ideal Carnot cycle delivers output heat into a building at 312…

Q: What is wrong with the claim that a cyclical heat engine does 4.00 kJ of work on an input of 24.0 kJ…

A: Energy conservation law states that Energy can never be created or destroyed, it can only be…

Q: In one cycle a heat engine absorbs 500 J from a hightemperature reservoir and expels 300 J to a…

Q: An engine is found to have an efficiency of 0.40. If it does 200 J of work per cycle, what are the…

Q: You design an engine that takes in 26 kJ of heat at 720 K in each cycle and rejects heat at a…

Q: A refrigerator removes heat from the freezing compartment at the rate of 20 kJ and ejects 24 kJ into…

Q: An engine manufacturer claims that the engine they have developed will in each cycle take 100 J of…

A: In this given question, We have to check the given statement is true or not.

Q: In a cyclic process, a heat engine absorbs 600 J of heat from a heat source, does work, and ejects…

A: The efficiency of a heat engine is, η=WQinη=Qin-QoutQin Here, Qin is the heat absorbed and Qout is…

Q: "An engine manufacturer makes the claim that the engine they have developed will, on each cycle,…

A: Given : Heat taken , Q1 = 100 J Mechanical Work, W = 80 J Heat out, Q2= 20 J Temperature of…

Q: A real (non- Carnot) heat engine, operating between heat reservoirs at temperatures of 450 K and 270…

A: Write the expression for thermal efficiency. In case of Carnot cycle.

Q: Calculate the total amount of work done by a reversible cycle after a 200 g mug of water at an…

A: Given data: The mass of water is m=200 g. The initial temperature is Ti=95◦C. The final temperature…

Q: A thermal cycle has an efficiency equal to 45.0 % of that a Carnot engine that operates between the…

Q: A heat engine working between 230.0°C and 520.0°C, takes in 1.401 x 107 J of heat and delivers 4.100…

Q: Consider an engine with efficiency of 25%. How much must the temperature of the hot reservoir…

Q: How much work is done by a gasoline engine that is 20 % efficient and loses 750 J to the cooling…

Q: What is the minimum work required of a refrigerator if it is to extract 50 J per cycle from the…

A: The expression for work done by the refrigerator is,

Q: A heat engine takes 1800 kcal of heat from a hot reservoir at 270oC and vents 1200 kcal to a cold…

A: Given,

Q: A Carnot engine performs work at the rate of 450 kW while using 950 kcal of heat per second. If the…

Q: An air-conditioning system operating on the reversed Carnot cycle is required to transfer heat from…

Q: When 2.1 kg of water at 12.3 °C is mixed with 3.7 kg of water at 39.7 °C in a well-insulated…

A: Given data: Mass of the water, m1=2.1 kg Temperature, T1=12.3C = 12.3 + 273 K∘ Mass of the water,…

Q: An engine that absorbs 480 J of heat per cycle has an efficiency of 00.34. How much work W does the…

Q: A refrigerator has a coefficient of performance of 2.0. In each cycle it absorbs 3.4×104 J of heat…

A: Coefficient of performance, COP = 2Heat absorbed, Q = 3.4×104 JHeat released, Qh = ?

Q: Calculate the maximum possible efficiency of a heat engine that uses surface lake water at 20.7°C as…

Q: A Carnot engine performs work at the rate of 490 kW while using 890 kcal of heat per second. If the…

Q: An engineer must design a refrigerator that does 300 J of work per cycle to extract 2100 J of heat…

A: Write the variables with suitable value.

Q: An inventor claims to have devised a cyclic engine which exchanges heat with reservoirs 25ºC and…

Q: A heat engine produces 2000 J of work while operating between 210 degrees Celsius and 35 degrees…

Q: What is wrong with the claim that a cyclical heat engine does 4.00 kJ of work on an input of 24.0 kJ…

A: Work output is the difference between the heat transfer into the engine and heat transfer to the…

Q: In a thermodynamic cycle, an ideal thermal engine atsorbs an amount of heat Q,0 from a hot reservoir…

A: Given : Heat absorbed = Q2 Work done = L Heat exchanged with cold reservoir = -4L

Question

An engine absorbs 3500J of heat each cycle and expels 1200J.

(a) How much work does it do in one cycle?

(b) If it is a reversible heat engine and the hot reservoir is at 750K, what is the temperature of the cold reservoir?

Video Video

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

a) Equation to find the work done by a heat engine.

VIEW

b) Equation to find the temperature of cold reservoir.

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Does the entropy increase for a Carnot engine for each cycle?
If a refrigerator discards 80 J of heat per cycle and its coefficient of performance is 6.0, what are (a) the quantity off heat it removes per cycle from a cold reservoir and (b) the amount of work per cycle required for its operation?
The energy output of a heat pump is greater than the energy used to operate the pump. Why doesn't this statement violate the first law of thermodynamics?
A Carnot engine operates in a Carnot cycle between a heat source at 550 and a heat sink at 20 . Find the efficiency of the Carnot engine.
A heat engine operates between two temperatures such that the working substance of the engine absorbs 5000 J of heat from the high-temperature bath and discharges 3000 J to the low-temperature bath. The rest of the energy is converted into mechanical energy of the turbine. Find (a) the amount of work produced by the engine and (b) the efficiency of the engine.
Show that the coefficients of performance of refrigerators and heat pumps are related by COPref=COPhp1. Start with the definitions of the COP s and the conservation of energy relationship between Qh, QC, and W.
A Carnot engine working between two heat baths of temperatures 600 K and 273 K completes each cycle in 5 sec. In each cycle, the engine absorbs 10 kJ of heat. Find the power of the engine.
A Carnot cycle working between 100 and 30 is used to drive a refrigerator between 10 and 30 . How much energy must the Carnot engine produce per second so that the refrigerator is able to discard 10 J of energy per second?
Is it possible for a system to have an entropy change if it neither absorbs nor emits heat during a reversible? transition? What happens it the process is irreversible?
In performing 100.0 J of work, an engine discharges 50.0 J of heat. What is the efficiency of the engine?
A Carnot engine has an efficiency of 0.60. When the temperature of its cold reservoir the efficiency drops to 0.55. If initially Tc=27, determine (a) the constant value of Th and (b) the final value of Tc.
Consider the processes shown below. In the processes AB and BC, 3600 J and 2400 J of heat are added to the system, respectively. (a) Find the work done in each of the processes AB, BC, AD, and DC. (b) Find the internal energy change in processes AB and BC. (c) Find the internal energy difference between states C and A. (d) Find the total heat added in the ADC process. (e) From the information give, can you find the heat added in process AD? Why or why not?