A thermal engine absorbs 1500 J of heat from a gas at a temperature of 250°K and discards 1200 J of heat as exhaust in each cycle. The temperature of the exhaust is 120° K. a) What is the mechanical work performed by the engine in each cycle? b) What is the thermal efficiency of the engine? c) What is the change in the internal energy of the engine in one cycle? d) What is the maximum efficiency that could be achieved for this particular engine? How does it compare with the actual efficiency of the engine?

A thermal engine absorbs 1500 J of heat from a gas at a temperature of 250°K and discards 1200 J of heat as exhaust in each cycle. The temperature of the exhaust is 120° K. a) What is the mechanical work performed by the engine in each cycle? b) What is the thermal efficiency of the engine? c) What is the change in the internal energy of the engine in one cycle? d) What is the maximum efficiency that could be achieved for this particular engine? How does it compare with the actual efficiency of the engine?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: A Carnot engine is operated between two energy tanks with temperatures of 450 K and 350 K. and they…

A: For Carnot engine: TH = 450 K TL = 350 K Heat received QH = 1000 J Find: a- how much energy the…

Q: n moles of CH4, considered as an ideal gas, are taken through the following thermodynamic cycle: A…

Q: a. How much heat is required to change 50 grams of ice, at an initial temperature of 0°C, to steam…

A: In given question, first the ice changes to water by absorbing latent heat of fusion then the water…

Q: 1. An engine with an efficiency of 0.2 absorbs 510 J of heat per cycle. (a) How much work does it…

A: Efficiency of an engine is defined as: Efficiency η=work performedheat absorbed…

Q: A Styrofoam cup holding 130 g of hot water at 97°C cools to room temperature, 23.0°C. What is the…

Q: An engine absorbed 865,500 3 of energy from a reservoir that had a temperature of 539 K and expelled…

Q: A heat engine draws in 537 J of heat and expels 121 J of heat. a) Find the work produced by the heat…

A: Given Qi=537J Qe=121J

Q: A Carnot engine extracts 200J of heat from a 600K hot reservoir every cycle. The cold reservoir…

Q: Which of the following statements is not consistent witht the second law of thermodynamics? a.…

A: The correct option is (d).

Q: A Carnot engine draws heat energy from a hot temperature reservoir at 250oC and deposits heat energy…

Q: A 15-ft3 steel container that has a mass of 75 lbm when empty is filled with liquid water.…

A: The heat transferred to the environment can be obtained as

Q: In the house to rooms are separated by a wall made of brick 4 inch thick Room A is held a constant…

A: Temperature of room A (TA)=300 K Area of wall in room A (AA)=12 m2 Temperature of room B (TB)=273 K…

Q: A Carnot engine takes in heat from a reservoir at 500°C and releases heat to a lower-temperature…

Q: 45-g of water at 14°C is heated until it becomes vapor at 100°C. Calculate the change in entropy of…

A: Given, Mass=45g Initial Temperature=14degree Final temparature=100degree

Q: The figure shows a PV diagram similar to the cycle of a Diesel engine. It consists of two adiabatic…

A: Given A PV diagram similar to a cycle of a diesel engine Given steps a→b is adiabaticb→c is…

Q: 2. A heat pump cycle whose coefficient of performance is 2.5 delivers energy by heat transfer to a…

A: As per given, The coefficient of performance = 2.5 Energy delivered by heat pump = 20kW

Q: Q3) (a) A Carnot heat engine is operating with the hot reservoir at 100 °C and the cold reservoir at…

Q: Consider the cycle using monoatomic ideal gas described by the PV diagram below. The process 1 2 is…

A: For a monoatomic ideal gas, the value of the adiabatic ratio is γ=1.67. Let us find the value of P2…

Q: A heat engine with an efficiency of 0.45 absorbs 540 J of heat per cycle. a. How much work does it…

Q: A heat engine is found to have an efficiency of 0.33. If it does 190 J of work per cycle, how much…

Q: in a single cycle, a heat engine extracts 8.00 kcal of heat from a hot reservoir and exhausts 5.00…

A: Given that, the amount of heat extracted from the hot reservoir is Qin=8kCal the amount of heat…

Question

A thermal engine absorbs 1500 J of heat from a gas at a temperature of 250°K and discards 1200 J
of heat as exhaust in each cycle. The temperature of the exhaust is 120° K.
a) What is the mechanical work performed by the engine in each cycle?
b) What is the thermal efficiency of the engine?
c) What is the change in the internal energy of the engine in one cycle?
d) What is the maximum efficiency that could be achieved for this particular engine? How does
it compare with the actual efficiency of the engine?

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

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

In the figure below you see the process done by 9.0 moles of an ideal gas with adiabatic constant 1.60. What is the efficiency of this engine?
A Carnot engine takes in heat from a reservoir at 460°C and releases heat to a lower-temperature reservoir at 140°C. What is its efficiency? %=
heat pump operates on a Carnot cycle between the cool exterior of a house and the warminterior. When the exterior temperature is 2.0 °C and the interior temperature is 20.0 °C.a) What is the coefficient of performance for the heat pump?b) The heat pump delivers 63 MJ of energy to the interior of the house. How much energy input isrequired in the form of work?
A heat engine provides a net power output of 14 kW and has an efficiency of 23 %. The engine rejects 1200 J of energy per cycle to a low temperature reservoir. a)Determine the amount of heat delivered to the engine from the high temperature reservoir per second. Your answer should be in units of Watts. b)Determine the required number of cycles per minute executed.
On a hot summer day, 2.00 x 10° J of heat transfer into a parked car takes place, increasing its temperature from 35.5°C to 44.4°C. What is the increase in entropy (in J/K) of the car due to this heat transfer alone? J/K Additional Materials CS Scanned with CamScanner O Reading
Suppose a heat engine design makes a square on a PV diagram, using a monatomic gas. The high pressure is 3P and low pressure is P. The high volume is 3V and low volume is V. What is the efficiency of the heat engine?
Consider a refrigerator undergoing a cycle. a. What is the maximum coefficient of performance that an ideal refrigerator can achieve if it operates between thermal reservoirs at 150K and 220K? b. Is it possible for a refrigerator operating between the same two temperatures of part (a) to have heat transfer in to the cycle of 34 kJ and heat transfer out of 42 kJ? Why or why not?
Steam locomotives have an efficiency of 15.0% and operate with a hot steam temperature of 475°C. (a) What would the cold reservoir temperature (in °C) be if this were a Carnot engine? °C (b) What would the maximum efficiency of this steam engine be if its cold reservoir temperature were 150°C? % Additional Materials B Reading ds Scanned with CamScanner