All Questions
Tagged with equilibrium physical-chemistry
23
questions
0
votes
0
answers
42
views
Understanding the relationship between $\Delta G$ and $K_p$, $K_x$ and $K_c$
Upon reading the chapter about equilibrium from my physical chemistry book, I was convinced that
$$ΔG= -RT \text{ln}(K_p) \tag{1}$$
and that
$$K_p = K_x (P^{\sum v}) \tag{2}$$
where $K_p$ is the ...
- 13
0
votes
1
answer
17
views
Why does Equilibrium shifts towards more dense phase while increasing pressure for phase change Equilibrium?
I recently read that when pressure of system in phase change equilibrium is increased, it shifts towards denser phase. So, in case of Melting of ice, increase in pressure results in shift towards ...
3
votes
1
answer
108
views
How to think about thermodynamic equilibrium in terms of virtual displacements?
I am currently taking thermodynamics and am finding the concept of thermodynamic equilibrium rather difficult to grasp. My textbook gives a definition in terms of the virtual displacement of with ...
- 333
3
votes
1
answer
115
views
How fast do $\rm CO_2$ molecules transfer between air and water at equilibrium?
Suppose a bath of water is in equilibrium with the air above it at temperature T and pressure P. The concentration of $\rm CO_2$ in the air is, say, 400ppm, and the concentration of $\rm CO_2$ in the ...
- 523
1
vote
2
answers
38
views
Does physical equilibrium occur at specific temperature and pressure?
Does physical equilibrium occur at only specific temperature and pressure? Like does equilibrium occur only at $ 1 atm $ and $0⁰C$ between water and ice? If I change temperature or pressure will the ...
- 13
0
votes
1
answer
116
views
Deriving chemical equilibrium constant from non-reacting or reacting ideal gas mixture partition function?
Given a chemical reaction of ideal gasses:
A <-> B
From my understanding, there are two partition functions that you can write depending on whether A and B can react to form each other.
Non-...
- 177
0
votes
2
answers
78
views
Would a black teapot midway between the temperatures of the tea and air cool down or heat up? If neither, then how do the 3 reach thermal equilibrium? [closed]
Say you had a matt black teapot with hot tea inside it but cool air around it. Originally, I’m guessing the matt black teapot should absorb more joules of IR energy than it emits per second. This is ...
- 115
4
votes
1
answer
163
views
Is this a valid derivation of the chemical equilibrium criterion?
In the book "Combustion Theory" for Forman Williams, appendix A, and also in the book "Combustion Physics" for C.K. Law, chapter 1, the following derivation can be found for the ...
- 2,659
1
vote
2
answers
213
views
Determining the equilibrium constant of a reaction
I'm looking at the lecture slide of my thermodynamics class, and have a question about the the equilibrium constant: for the reaction
$$
SO_4^{-2}+2H^+ <=> H_2SO_4.
$$
The equilibrium constant ...
- 1,783
0
votes
0
answers
18
views
The maximum amount of substance that can completely evaporate in a given container
As you know when we have given substance in an empty container then the substance would evaporate until and equilibrium is attained between the substance and it's vapour phase. In due process the ...
user249968
4
votes
1
answer
253
views
A general way to combine equilibrium constants in reaction networks?
I have a network of states, each linked with neighboring states by unique forward and reverse transition rates ($k_{f}$ and $k_{r}$) - let's just say these are chemical species with multiple ...
- 95
3
votes
1
answer
325
views
Why is detailed balance required for thermodynamic consistency?
why does the Wegscheider condition or detailed balance have to be true for chemical reactions and what does it mean to violate it in terms of thermodynamics?
here is an attempt to derive a simple ...
- 31
0
votes
1
answer
378
views
What is the law of mass action?
What is the law of mass action? This is a question which covers the area of chemistry. But unfortunately I don't know any sites which can clear my chemistry doubts. So kindly I request anyone to ...
- 41
1
vote
0
answers
61
views
To which all factors chemical equilibrium is directly proportional to? [closed]
The equilibrium constant is directly proportional to the concentration. why it is so? Is chemical equilibrium dependent on temperature and other such factors? Then why we only focus on concentration?
- 41
0
votes
2
answers
837
views
Is the rate of evaporation in the below mentioned situation constant when liquid vapour equilibrium is not reached?
i am studying liquid vapour equilibrium and there is the set up (below) for the experiment.The conditions:temperature is constant throughout.
in this case is the rate of evaporation of the liquid ...
- 199