The relationship between volume and pressure
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In chemical reactions, the volume increases, and reducing the pressure is advantageous for it. A decrease in volume is favorable for increasing pressure. Why? In other words, what is the relationship between pressure and volume?
In chemical reactions, the volume increases, and reducing the pressure is advantageous for it. A decrease in volume is favorable for increasing pressure. Why? In other words, it is a question of the relationship between pressure and volume; this relates to chemical reaction equilibrium, rather than the relationship between pressure and volume per se. For example, in a system where the forward reaction increases the volume and thereby reduces pressure, this favors the progression of the reaction in the forward direction. By the same logic, the latter question is the same as well
The relationship between volume and pressure is: PV=nRT
Still, no explanation was given for the second floor – why, in a reaction where the volume increases, it is necessary to reduce the pressure in order for the reaction to proceed in the desired direction. Can’t we increase the pressure then?
My technical skills are limited; I’m not able to type out formulas and equations, so I can’t explain things to you in detail. However, if you search on Baidu for information on the shift in chemical reaction equilibrium, you’ll find a lot of resources that will definitely be helpful to you
For an ideal gas: pv = nRT; where p is the pressure, v is the volume, n is the amount of substance, r is the gas constant equal to 8.314, and T is the temperature in kelvin. For real gases: pv = znRT ； Where z is the compression factor.