(b) A frictionless piston-cylinder device as shown in Fig. Qlb contains water at 400 kPa and thewater is heated at constant pressure from saturated liquid to saturated vapor. Then, the heatingprocess is continued in an isobaric manner until its specific volume reaches the value of0.5 m²/kg.WaterHeatFigure Q1bi) What is the initial temperature of water in the cylinder?ii) What is the final temperature of water in the cylinder?iii) Calculate the total boundary work during the processes, kJ/kg.iv) Calculate the total amount of heat transferred during the processes, kJ/kg.v) Sketch both processes on a T – v diagram with respect to saturation lines.

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A frictionless piston-cylinder device as shown in Fig. Qlb contains water at 400 kPa and the water is heated at constant pressure from saturated liquid to saturated vapor. Then, the heating process is continued in an isobaric manner until its specific volume reaches the value of 0.5 m³/kg.

A frictionless piston-cylinder device as shown in Fig. Qlb contains water at 400 kPa and the water is heated at constant pressure from saturated liquid to saturated vapor. Then, the heating process is continued in an isobaric manner until its specific volume reaches the value of 0.5 m³/kg.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.

Question

(b) A frictionless piston-cylinder device as shown in Fig. Qlb contains water at 400 kPa and the
water is heated at constant pressure from saturated liquid to saturated vapor. Then, the heating
process is continued in an isobaric manner until its specific volume reaches the value of
0.5 m²/kg.
Water
Heat
Figure Q1b
i) What is the initial temperature of water in the cylinder?
ii) What is the final temperature of water in the cylinder?
iii) Calculate the total boundary work during the processes, kJ/kg.
iv) Calculate the total amount of heat transferred during the processes, kJ/kg.
v) Sketch both processes on a T – v diagram with respect to saturation lines.

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