All Questions
Tagged with equilibrium vapor-pressure
11
questions with no upvoted or accepted answers
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Working out energies of hydrogen bonds by comparing chemical potential of vapour and condensed phase - equation derivation
I want to ask a question about working out the energy of a hydrogen bond between two water molecules, $w_{AA}$ using the chemical potentials of vapour and condensed phases.
I was reading K. Dill, ...
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Measuring vapour pressure in a closed system
My experiment requires the determination of vapour pressure from which I will calculate the number density (or number of moles of the molecule) later, for a closed system.
Here's my setup :
Liquid ...
- 1,582
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Is every substance in equilibrium with its vapours?
In one of my previous questions, I got an answer from user Jan:
The smell of a compound as we perceive it usually depends on which receptors in the nose will bind the molecule (or not).
These ...
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How does association within vapor or dissociation within liquid affect the ideal nature of a binary solution?
As I understand, when there is positive deviation of a binary solution from Raoult's Law, the equilibrium partial pressure curve approach ideality (i.e a straight line dependence of equilibrium ...
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What causes both components of a binary gas mix to condensate at the same time for a given composition
Okay, so recently I encountered the temperature - mole fraction diagrams for binary vapour-liquid equilibrium. For now, I only consider two-component systems where the components are very similar and ...
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Anhydrous ammonia vapor-liquid equilibrium
I have been given a anhydrous ammonia vapor liquid system in an air-tight container where the pressure is 30 bar and the temperature is 30 degrees. They claim the system is in equilibrium, which I ...
- 119
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Vapor-Liquid Equilibrium and partial pressure of ammonia
I tried searching the forums for a similar question but I do not think it was entirely answered:
Suppose I have a closed system in a container with solvent and a certain concentration of gas, say ...
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Why is vapor pressure constant at boiling point?
At non-boiling point, I understand that when you add heat, temperature increases and also the amount of gas increases, so by using $PV=nRT$ at constant volume, the increase in $n$ and $T$ would ...
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Is the evaporation (liquid to gas conversion) of ethanol dependent on how full you fill it up in a sealed bottle?
It seems intuitive to think that in a bottle (which is air-tight), if you fill up ethanol (or any other volatile liquid) to very full extent, thereby leaving very little headspace, the amount of ...
- 119
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Water vapor equilibrium calculations
The question had two parts.
The first part said:
Calculate the amount of water required to saturate a vessel of volume 82 L at 300 K given that the vapor pressure of water is 38 torr at 300 K.
The ...
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What is the ∆H_vap when temperature of a given liquid is equal to the boiling point of the liquid?
What is the $∆H_{vap}$ when temperature of a given liquid is equal to the boiling point of the liquid?
For the other cases ie (i) T>BP, $∆H_{vap}$ > 0 (ii) T<BP, $∆H_{vap}$ < 0
So what ...
