I have uploaded parts of the question regarding the laws of thermodynamics which need to be solved, Kindly solve parts b) c) d) showing all formulas and working along with any explanations. Thank you! b) A furnace is transferring heat to a heat engine at a rate of 85MW. The waste heat is rejectedto a nearby river at a rate of 48MW. Determine:a. The net power output of the engineb. The thermal efficiency of the enginec) A freezer with a coefficient of performance of 4.3 extracts 165 kJ of heat at -10.0°C. Theroom temperature is 25.0ºC.a. How much heat is delivered to the room?b.How much work is required to run the freezer?d) In a gas turbine, the gases flow at a rate of 5 Kg/s. The gases enter the turbine at a pressureof 7 bar with a velocity 100m/s and leaves at a pressure 1.3 bar with velocity 230 m/s. theturbine is insulated. If the enthalpy of the gas at the inlet is 1200KJ/Kg and at the outlet950KJ/Kg, Determinea. The work doneb. The capacity of the turbine

Answered: Image /qna-images/answer/7a235e0a-cecc-4e8a-acdd-6d5783f6813e.jpg

b) A furnace is transferring heat to a heat engine at a rate of 85MW. The waste heat is rejected to a nearby river at a rate of 48MW. Determine: a. The net power output of the engine b. The thermal efficiency of the engine

b) A furnace is transferring heat to a heat engine at a rate of 85MW. The waste heat is rejected to a nearby river at a rate of 48MW. Determine: a. The net power output of the engine b. The thermal efficiency of the engine

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter12: The Laws Of Thermodynamics

Section: Chapter Questions

Problem 41P: A freezer has a coefficient of performance of 6.30. The freezer is advertised as using 457 kW-h/y....

See similar textbooks

Related questions

Q: As the angle between two concurrent angles decreases, does the magnitude of the force required to…

A: Concurrent forces refer to forces that act on the same point or along the same line of action. When…

Q: The near point (the smallest distance at which an object can be seen clearly) and the far point (the…

A: To solve any question we always need to focus on the information that are provided. In this case, a…

Q: llowing. Show your solution. Find the individual and total values of the voltage, current and…

A: If the resistances are connected in series in a circuit, the effective resistance is the sum of the…

Q: Part A In terms of the total charge Q, estimate the electric field on the axis at point 0.02Ro from…

Q: Two connected carts are pulled across the floor under the influence of a force of 20 N applied by a…

A: The mass of the forward cart m1 = 12 kgMass of the second cart is m2 = 15 kg Force that is used to…

Q: What is the maximum kinetic energy in eV of electrons ejected from a certain metal by 474 nm EM…

A: Wavelength of EM radiation is Binding energy is Note:Find:Maximum kinetic…

Q: Part F How would the answers differ if the sphere was a solid nonconductor uniformly charged…

A: Page 1

Q: In Millikan's oil-drop experiment, one looks at a small oil drop held motionless between two plates.…

A: Given Data:Voltage Separation between the plates Density of oil Diameter To Determine:The charge on…

Q: Radio station KSON in San Diego broadcasts at both 1240 kHz (AM) and 97.3 MHz (FM). a) Which of…

Q: To start an avalanche on a mountain slope, an artillery shell is fired with an initial velocity of…

Q: A solid metal sphere of radius 3.00 mm carries a total charge of -4.20 μC . d)What is the magnitude…

Q: Learning Goal: To practice Problem-Solving Strategy 2.1 Motion with constant acceleration You are…

A: Given Data:The initial speed of the car is, .The distance between the deer and the person is The…

Q: A battery with = 2.00 V and no internal resistance supplies current to the circuit shown in the…

Q: a) Calculate the energies of the scattered photons for the angles given below Angle (degrees) 25 40…

Q: 4. Determine i in the given circuit. 5V 3.2 M + 8V

A: Circuit diagram is given as,

Q: In a grid of wires, the temperature at exterior mesh poins is maintained at constant values as shown…

A: 2nd relation

Q: Consider a transverse periodic (sinusoidal) wave passing through a very long string of mass density…

Q: 5. An airplane heading northwest [N45°W] at 500 km/h encounters a wind of 120 km/h from the…

A: The question states that an airplane is heading northwest (N 45°W) at a speed of 500 km/h. It…

Q: 31. In example 23 of the 6th exercise the Coulomb force acting on an electron in a distance r =…

A: a) The electric field due to a charge q at a distance r is given by E= kq/r2 where k iss the columb…

Q: 1. Discuss briefly some applications of Lenz's law in magnetic induction. 2. The current through a…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: You are driving along a highway at 32 m/s when you hear the siren of an emergency vehicle traveling…

A: Speed of observer is When source and observer approaching each other then the frequency observed by…

Q: If a 500.0 g sample of technetium-99 decays to 62.5 g of technetium-99 remaining in 639,000 years,…

A: Initial sample () = 500 gSample after 639000 years () = 62.5 g

Q: Consider a current carrying conductor with radius R with a total current I which is uniformly…

A: A current carrying conductor with radius R with a total current I which is uniformly distributed.…

Q: 1a. A 13.2kg block is dragged over a rough, horizontal surface by a 71.5N force acting at 20.5…

Q: Question 5: Provide the value for the following resistor based on the given color: 1- BROWN RED…

A: To determine the values of resistor from given color code.Note: It is bartley q&a policy that…

Q: Explain the difference between scalar and vector quantities. Exemplify your answer with: a) the…

A: Scalar and vector quantities are two types of physical quantities that are used to describe various…

Q: A ball is thrown upward, with an initial velocity of 35 meters per second, at an angle of 59° with…

A: The initial velocity of the ball is 35 m/s at an angle of 59o with respect to horizontal.The height…

Q: Suppose you have two wires placed horizontally. lets say the first carries a current l1=90A. The…

Q: A loudspeaker produces sound waves in air of wavelength 0.68 m and speed 340 m/s. How many cycles of…

Q: Two ships are heading toward the same harbor. Ship A is 200 km west of the harbor at noon and is…

A: To find how quickly the two ships are approaching each other, we can use the concept of relative…

Q: annot be hand-written, all steps must be typed out Must include these 5 steps of problem solving…

A: Distance traveled It stops 6 ft before,So actual distance Initial speed

Q: The graph above represents the nuclear decay of a radioactive element, measured using a…

A: Graph is given as,

Q: A rapidly spinning paddle wheel raises the temperature of 400 mL of water from 21°C to 25°C. You may…

A: A rapidly spinning paddle wheel raises the temperature of 400 mL of water from 21°C to 25°C.a) To…

Q: Find the magnitude of the net electric field these sheets produce at a point 4.00 cm to the left of…

Q: QUESTION-4: Consider a laser beam with a diameter of 5 mm and carrying 60 W power. (Take c=3x10 m/s,…

Q: Write two slope equations: Slope = _________ = ___________ 2. Write slope value with unit: Slope =…

Q: Wil-E-Coyote drops a bowling ball off a cliff to try to catch the Roadrunner. The cliff is 181.8 m…

A: Every object on the surface of the earth attracts towards the center of the earth. A freely falling…

Q: A car with a mass of 922 kg rounds the top of the hill at a speed of 10 m/s. The friction between…

Q: What is the magnitude of the electric field a distance of 75 cm from an infinite wire of charge with…

A: A infinite wire with Linear charge density (λ) = 3.5 μC/m=3.5×10-6 mDistance (r) = 75 cm = 0.75…

Q: Write down what each variable is for each equation and specify if each variable is vector or scalar…

A: Dear student, Since all questions are different as per our company's guidelines we can author only…

Q: A thermopane window consists of two glass panes, each 0.50 cm thick, with a 1.0-cm-thick sealed…

Q: A thin cylindrical shell of radius R₁ = 4.5 cm is surrounded by a second cylindrical shell of radius…

Q: In the context of photoelectric effect, work function () is defined as the O minimum energy required…

A: In the context of photoelectric effect, work function is defined as the…

Q: 2.0 mol of gas are at 30°C and a pressure of 1.5 atm. Part A How much work must be done on the gas…

Q: After spending the afternoon studying together, your friend leaves to walk home. Three minutes after…

A: d = rtThe friend leaves 0.05 hours or 3 mins before than you.

Q: Consider the image shown where a plank rests horizontally on a roof.Given the following parameters:…

Q: How many x-ray photons per second are created by an x-ray tube that produces a flux of x-rays having…

A: Power of x rays = 1.21 W Average energy per photon = 80 keV

Q: a). Which of the following is NOT a unit of potential energy: a)J, b) kg*m/s^2, C) kg*m^2/s^2, D)…

A: a) unit of potential energy are hence option C is not unit of potential energyb)we know change…

Q: Suppose a projectile is launched from a height of 2 meters above the ground, with initial speed v₁ =…

Q: In Millikan's oil-drop experiment, one looks at a small oil drop held motionless between two plates.…

A: Given Data:Voltage Separation between the plates Density of oil Diameter To Determine:The charge on…

Concept explainers

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.

Question

I have uploaded parts of the question regarding the laws of thermodynamics which need to be solved, Kindly solve parts b) c) d) showing all formulas and working along with any explanations. Thank you!

b) A furnace is transferring heat to a heat engine at a rate of 85MW. The waste heat is rejected
to a nearby river at a rate of 48MW. Determine:
a. The net power output of the engine
b. The thermal efficiency of the engine
c) A freezer with a coefficient of performance of 4.3 extracts 165 kJ of heat at -10.0°C. The
room temperature is 25.0ºC.
a. How much heat is delivered to the room?
b.
How much work is required to run the freezer?
d) In a gas turbine, the gases flow at a rate of 5 Kg/s. The gases enter the turbine at a pressure
of 7 bar with a velocity 100m/s and leaves at a pressure 1.3 bar with velocity 230 m/s. the
turbine is insulated. If the enthalpy of the gas at the inlet is 1200KJ/Kg and at the outlet
950KJ/Kg, Determine
a. The work done
b. The capacity of the turbine

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

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

Step 1: B answer part a

VIEW

Step 2: B answer part b

VIEW

Solution

VIEW

Step by step

Solved in 3 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

(a) How much heat transfer occurs from 20.0 kg of 90.0C water placed in contact with 20.0 kg of 10.0C water, producing a final temperature of 50.0C ? (b) How much work could a Carnot engine do with this heat transfer, assuming it operates between two reservoirs at constant temperatures of 90.0C and 10.0C ? (c) What increase in entropy is produced by mixing 20.0 kg of 90.0C water with 20.0 kg of 10.0C water? (d) Calculate the amount of work made unavailable by this mixing using a low temperature of 10.0C, and compare it with the work done by the Garnet engine. Explicitly show how you follow the steps in the Problem-Solving Strategies for Entropy. (e) Discuss how everyday processes make increasingly more energy unavailable to do work, as implied by this problem.
An electric generating station is designed to have an electric output power of 1.40 MW using a turbine with two-thirds the efficiency of a Carnot engine. The exhaust energy is transferred by heat into a cooling tower at 110C. (a) Find the rate at which the station exhausts energy by heat as a function of the fuel combustion temperature Th. (b) If the firebox is modified to run hotter by using more advanced combustion technology, how does the amount of energy exhaust change? (c) Find the exhaust power for Th = 800C. (d) Find the value of Th for which the exhaust power would be only half as large as in part (c). (e) Find the value of Th for which the exhaust power would be one-fourth as large as in part (c).
(a) What is the work output of a cyclical heat engine having a 22.0% eficiency and 6.00109J of heat transfer into the engine? (b) How much heat transfer occurs to the environment?
(a) What is the eficiency of a cyclical heat engine in which 75.0 kJ of heat transfer occurs to the environment for every 95.0 kJ of heat transfer into the engine? (b) How much work does it produce for 100 kJ of heat transfer into the engine?
How much work is required to compress 5.00 mol of air at 20.0C and 1.00 atm to one-tenth of the original volume (a) by an isothermal process? (b) What If? How much work is required to produce the same compression in an adiabatic process? (c) What is the final pressure in part (a)? (d) What is the final pressure in part (b)?
Of the following, which is not a statement of the second law of thermodynamics? (a) No heat engine operating in a cycle can absorb energy from a reservoir and use it entirely to do work, (b) No real engine operating between two energy reservoirs can be more efficient than a Carnot engine operating between the same two reservoirs, (c) When a system undergoes a change in state, the change in the internal energy of the system is the sum of the energy transferred to the system by heat and the work done on the system, (d) The entropy of the Universe increases in all natural processes, (e) Energy will not spontaneously transfer by heat from a cold object to a hot object.
(a) What is the best coefficient of performance for a refrigerator that cools an environment at 30.0C and has heat transfer to another environment at 45.0C ? (b) How much work in joules must be done for a heat transfer of 4186 kJ from the cold environment? (c) What is the cost of doing this if the work costs 10.0 cents per 3.60106J (a kilowatthour)? (d) How many kJ of heat transfer occurs into the warm environment? (e) Discuss what type of refrigerator might operate between these temperatures.
(a) How much food energy will a man metabolize in the process of doing 35.0 kJ of work with an efficiency of 5.00%? (b) How much heal transfer occurs to the environment to keep his temperature constant? Explicitly show how you follow the steps in the Problem—Solving Strategy for thermodynamics found in Problem-Solving Strategies for Thermodynamics.
A freezer has a coefficient of performance of 6.30. The freezer is advertised as using 457 kW-h/y. (a) On average, how much energy does the freezer use in a single day? (b) On average, how much thermal energy is removed from the freezer each day? (c) What maximum mass of water at 20.0C could the freezer freeze in a single day? Note: One kilowatt-hour (kW-h) is an amount of energy equal to operating a 1-kW appliance for one hour.
(a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature of 50.0C and a cold reservoir temperature of 20.0C ? (b) How much heat transfer occurs into the warm environment if 3.60107J of work (10.0kWh) is put into it? (c) If the cost of this work input is 10.0cent/kWh, haw does its cost compare with the direct heat transfer achieved by burning natural gas at a cost of 85.0 cents per therm. (A therm is a common unit of energy for natural gas and equals 1.055108J .)
(a) On a winter day, a certain house loses 5.00108J of heat to the outside (about 500,000 Btu). What is the total change in entropy due to this heat transfer alone, assuming an average indoor temperature of 21.0C and an average outdoor temperature of 5.00C ? (b) This large change in entropy implies a large amount of energy has become unavailable to do work. Where do we find more energy when such energy is lost to us?