6.22 A system consisting of 2 kg of water initially at 160°C, 10 bar undergoes an internally

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6.22 A system consisting of 2 kg of water initially at 160°C, 10 bar undergoes an internally reversible, isothermal expansion during which there is energy transfer by heat into the system of 2700 kJ. Determine the final pressure, in bar, and the work, in kJ. __________________________________________________________________________________________
Textbooks:
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Fundamentals of Engineering Thermodynamics 8th Edition (Wiley):
Moran, M. J., et. al., 2014, Fundamentals of Engineering Thermodynamics, 8th ed., Wiley, Hoboken, NJ.
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Engineering Mechanics Statics (Pearson):
Hibbeler, R. C. Engineering Mechanics Statics. Pearson Prentice Hall, Pearson Education, 2016.
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Sorry I deleted my comment
This is for anyone who wants to ask the same question.
My comment was

I think you used the wrong table because it's superheated

GR Engineering replied with

At state 1, the pressure is equal to 10 bar. Turn to table A-3. You will find the saturation temperature is 179.9°C. We are given 160°C at state 1, which is lesser than the saturation temperature of 10 bar. Therefore, we are to the left of the vapor dome, which is actually in the compressed liquid region, not the superheated region. Unfortunately, this textbook does not supply a compressed liquid table for 10 bar, so we can approximate using the saturated liquid properties at our temperature (160°). The table I used is correct :)

Thanks for the reply!
I always get confused with this point.

farisoqdeh
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at 3:12 why we didn't use pressure table

ersahguloglu
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what about in a case when the pressure is 6.178

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