Confused by an exercise on the subject of chemical equilibrium

In summary, the conversation discusses confusion about an exercise that involves gas reactions and concentration. The concept of "fugacity" is also mentioned and it is clarified that it is not part of the exercise. The conversation also touches on the relationship between concentration and partial pressure. The starting pressure is also mentioned, which can be calculated using the ideal gas law.
  • #1
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9
Homework Statement
I assume that they talk about partial pressure and calculate it instead of the concentration .
Relevant Equations
PV = nRT
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Hello , i am a little confused about this exercise because we talk about gases reaction and we are asked about the concentrations
P.S : i have other questions that depends on your answer .
Thanks .
 
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  • #2
Are you familiar with the concept of "fugacity?"
 
  • #3
no,this exercise is from the problem set of a course called "introduction to chemical equilibrium " and the concept of "fugacity" is not mentioned .
 
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  • #4
Concentration of a gas in a mixture is not much different from a concentration in general - just number of moles in a volume. Can be reasonably easily interconverted with the partial pressure.
 
  • #5
From the ideal gas law, what is the starting pressure?
 

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