Problem 1: One kg of water is placed inside a well-insulated piston. The external pressure PE is being held a constant value of 10 MPa. Heat is being supplied to the water through a heater. The heat is being added slowly to the water so the piston expansion process can be assumed as a reversible process. The temperature of the water is at 20°C before the heating (initial state). The final water temperature reaches 400°C℃ after the heating. a) What is the phase of water at the initial and at the final state, respectively? b) Please determine the volume of the 1kg of water at the initial state and at the final state, respectively. c) Please determine the work done, W[kJ], by the piston; the change in internal energy, AU [kJ], of the system; and the heat transferred, Q [kJ]; for this process. Please plot Q [kJ] vs. T [°C] for this process (from initial T to final T). you can use excel to plot this graph P=10 MPa 1 kg water
Problem 1: One kg of water is placed inside a well-insulated piston. The external pressure PE is being held a constant value of 10 MPa. Heat is being supplied to the water through a heater. The heat is being added slowly to the water so the piston expansion process can be assumed as a reversible process. The temperature of the water is at 20°C before the heating (initial state). The final water temperature reaches 400°C℃ after the heating. a) What is the phase of water at the initial and at the final state, respectively? b) Please determine the volume of the 1kg of water at the initial state and at the final state, respectively. c) Please determine the work done, W[kJ], by the piston; the change in internal energy, AU [kJ], of the system; and the heat transferred, Q [kJ]; for this process. Please plot Q [kJ] vs. T [°C] for this process (from initial T to final T). you can use excel to plot this graph P=10 MPa 1 kg water
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
Related questions
Question
Please label variables clearly
![Problem 1: One kg of water is placed inside a well-insulated piston. The external pressure PÅ is
being held a constant value of 10 MPa. Heat is being supplied to the water through a heater. The
heat is being added slowly to the water so the piston expansion process can be assumed as a
reversible process. The temperature of the water is at 20°C before the heating (initial state). The
final water temperature reaches 400°C after the heating.
a) What is the phase of water at the initial and at the
final state, respectively?
b) Please determine the volume of the 1kg of water at
the initial state and at the final state, respectively.
c) Please determine the work done, W[kJ], by the
piston; the change in internal energy, AU [kJ], of
the system; and the heat transferred, Q [kJ]; for this
process.
Please plot Q [kJ] vs. T [°C] for this process (from
initial T to final T). you can use excel to plot this
graph
P=10 MPa
1 kg water
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Transcribed Image Text:Problem 1: One kg of water is placed inside a well-insulated piston. The external pressure PÅ is
being held a constant value of 10 MPa. Heat is being supplied to the water through a heater. The
heat is being added slowly to the water so the piston expansion process can be assumed as a
reversible process. The temperature of the water is at 20°C before the heating (initial state). The
final water temperature reaches 400°C after the heating.
a) What is the phase of water at the initial and at the
final state, respectively?
b) Please determine the volume of the 1kg of water at
the initial state and at the final state, respectively.
c) Please determine the work done, W[kJ], by the
piston; the change in internal energy, AU [kJ], of
the system; and the heat transferred, Q [kJ]; for this
process.
Please plot Q [kJ] vs. T [°C] for this process (from
initial T to final T). you can use excel to plot this
graph
P=10 MPa
1 kg water
www
Expert Solution
Step 1
External pressure= 10 MPa
Initial temperature of water= 20 0C
Final temperature of liquid = 400 0C
Mass of the water = 1 kg
Step by step
Solved in 5 steps with 2 images
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