It is desired to compress the steam from 100 kPa to 5000 kPa isothermally at 500 °C. During this process the thermodynamic properties of steam might change. If steam behaves ideally at its initial conditions, estimate the fugacity of the steam during this compression process.
It is desired to compress the steam from 100 kPa to 5000 kPa isothermally at 500 °C. During this process the thermodynamic properties of steam might change. If steam behaves ideally at its initial conditions, estimate the fugacity of the steam during this compression process.
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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Step 1
Given data: Initial condition:
After isothermal compression, final state:
It is also given that the initial condition of steam is ideal. So, fugacity of steam at state 1,
From the definition of fugacity:
Chemical potential = -------------------------------------- (1)
where G = Gibbs Free energy = (H-TS)
= Universal gas constant =
Step 2
For state 1: from steam tables at :
So,
------------------
Now for state 2: from steam tables at : :
So,
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