State in which of the following processes, willAH be NOT equal to zero.I.Adiabatic, reversible expansion of an idealgas.II. Adiabatic expansion of an ideal gasthrough a throttling valve.III. Reversible expansion of an ideal gas atconstant temperature.IV. Vaporization of liquid water at 100 °C and1 bar pressure.

1)△H = 0 For Adiabatic, Reversible Expansion of an Ideal Gas, Q = 0 △H = △U + △PV = Q - W + △PV…

Answered: State in which of the following…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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Similar questions

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7.1. Air expands adiabatically through a nozzle from a negligible initial velocity to a final velocity of 325 ms. What is the temperature drop of the air, if air is assumed to be an ideal gas for which Cp = (7/2)R?
1. Find the internal energy of 1 kg of steam at 20 bar in the following cases: 1. when the steam is wet having dryness fraction 0.9, and 2. when the steam is superheated when its temperature is 400° C.
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8.
An adiabatic steam turbine in an electric power plant is designed to accept steam at 5000 kPa and 600°C and discharge the steam at 101.3 kPa. a) What is the exit temperature of the steam and the work produced (per kg of steam) if the turbine operates adiabatically and reversibly? b) If the turbine operated adiabatically but irreversibly, with an isentropie efficieney of 80 %, what would be the exit temperature and the work produced (per kg of steam)? c) For part b, what is the entropy generation Sa?
5.8. With respect to 1 kg of liquid water: (a) Initially at 0°C, it is heated to 100°C by contact with a heat reservoir at 100°C. What is the entropy change of the water? Of the heat reservoir? What is ASiotal? (b) Initially at 0°C, it is first heated to 50°C by contact with a heat reservoir at 50°C and then to 100°C by contact with a reservoir at 100°C. What is ASotal? (c) Explain how the water might be heated from 0°C to 100°C so that AStotal = 0.
106 Joules of heat are transferred from a reservoir at 327° C to an engine that operates on the Carnot cycle. The engine rejects heat to a reservoir at 27° C. Determine the thermal efficiency of the cycle and work done by the engine.
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A: A system consisting of 1 kg of H₂O undergoes a power cycle composed of the following processes: Process 1-2: Constant-pressure heating at 10 bar from saturated vapor. Process 2-3: Constant-volume cooling to p3= 5 bar, T3 = 160 degree Celsius. Process 3-4: Isothermal compression with Q34= -815.8 kJ. Process 4-1: Constant-volume heating. Sketch the cycle on p-v diagrams. Neglecting KE and PE effects, determine W. Q, AU, and, AH.

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