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Volume Fraction

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#1 chetanhm2


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Posted 18 August 2020 - 10:29 AM

How to convert mol fraction to volume fraction for a real gas ??
For an ideal gas it is equal right

#2 breizh


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Posted 18 August 2020 - 07:21 PM


Real gas : P*V=Z*R*T 

check the link attached :



Calculation method about Z factors are available in this forum .


Ideal gas : P*V=R*T 

Yes for an ideal gas : % vol =% Mol  ; Review my previous answers on the topic . 


Engineering is about hard work!


Good luck.


Edited by breizh, 19 August 2020 - 04:31 AM.

#3 Chemitofreak


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Posted 19 August 2020 - 01:22 AM

I guess you want an easy way out.


What you can do is use HYSYS or PROII and do the necessary conversion :P

#4 chetanhm2


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Posted 19 August 2020 - 10:49 AM

Dear Sir,

thanks a lot for very informative document on this.

I want to know do we need to account for pressure range in which we agree operating currently .

Chetan Chavan

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