One kilogram of steam is placed in a piston-cylinderdevice, initially at P 5 1 bar and T 5 1008C. Thesteam is heated at constant pressure to T 5 2008C.A. Find the heat and work for this process. Obtain allneeded data from the steam tables.B. Find the heat and work for this process. Use theideal gas law and the ideal gas heat capacity forsteam, located in Appendix D. How far off areyour answers compared to part A?C. Suppose in part A you had overlooked the factthat the steam expands when heated, and assumedthat work was negligible. How far off would youranswers for Q have been?

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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One kilogram of steam is placed in a piston-cylinder
device, initially at P 5 1 bar and T 5 1008C. The
steam is heated at constant pressure to T 5 2008C.
A. Find the heat and work for this process. Obtain all
needed data from the steam tables.
B. Find the heat and work for this process. Use the
ideal gas law and the ideal gas heat capacity for
steam, located in Appendix D. How far off are
your answers compared to part A?
C. Suppose in part A you had overlooked the fact
that the steam expands when heated, and assumed
that work was negligible. How far off would your
answers for Q have been?
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