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Results tagged with ideal-gas
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user 132126
For questions about the ideal gas law or gases which can be well approximated as an ideal gas.
3
votes
Volume of gas mixture
I have inlet to a reactor formed by equimolar CH4 and NH3, I want to find the volume of this gas mixture.
In flow processes like this, it has zero value to know the volume of a mixture of gases at t …
- 3,759
1
vote
Volumetric flow rate ratio calculation
I think you are wrongly relating the variables to the flow streams. Maybe the following image can help orienting yourself:
So, I will follow your procedure:
Nitrogen and oxygen amount balances
\begi …
- 3,759
1
vote
Accepted
How do I determine temperature and pressure rise whenever mols of gases are added in a isola...
The question can be answered by solving the material and energy balance for this case.
The tank is the control volume CV, of a constant volumne $V_\mathrm{CV}$, and its variables will be referred wit …
- 3,759
10
votes
Why would there be a non-zero Gibbs energy of mixing for ideal gases?
With your reply you seem to have answered part of your question. I would like to add a bit about the other part. I will have to do it mathematically first, there is no other shortcut, but then we will …
- 3,759
2
votes
How to obtain the value of the gas constant R = 8.20574 × 10⁻² L atm K⁻¹ mol⁻¹
My question is how arrive at the number in (1).
You will never arrive to the value of $R$ by paper. The value of $R$ is a universal physical constant. It appears for all gases, independent of their …
- 3,759
2
votes
Use the first law of thermodynamics to derive the pressure as a function of T, U, V and N
It seems that the entropy function is for a thermodynamic system of a pure fluid. So let me:
Define $ s \triangleq S/N $ to have the entropy per molecule.
Multiply both sides for Avogadro's number $N …
- 3,759