Questions tagged [equilibrium]
The state in which both reactants and products are present at concentrations which have no further tendency to change with time.
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Derivation of Gibbs phase rule
I learnt about the Gibbs phase rule a while back but did not really think too much about how it was derived. I am now currently looking back at the derivation provided in the textbook and I realised ...
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How does the phase equillibrium graph of H2O2 look like? [closed]
Please help me with the Phase equilibria graph of H2O2 (Pressure vs Temp), can't seem to find it anywhere.
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Bicarbonate concentration in the RO permeate
I am facing a challenge since long ago, but have not been able to find a suitable solution for it. Please share your thoughts if you have the knowledge or experience in this area.
I am running an RO ...
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Does copper(II) hydroxide dissolve in ammonia solution?
According to University of Oregon — Chemistry Interactive Demonstrations and Educational Resources — Copper-Ammonia Complex, the equilibrium constant for the formation of copper(II) hydroxide is ...
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Drug dosage determination using dynamical systems
I am a Mathematical Biology student, and recently I have read about various approaches, such as Ordinary Differential Equations (ODEs), used to determine the exact drug dosage and treatment sessions ...
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What is the reason behind atoms/molecules in reversible reactions reverting back to its reactant state even if they have found stability? [closed]
If atoms and molecules aim for stability and equilibrium, then why do they feel the need to revert back into their original state once they have already found stability?
Example: $\ce{I2 + H2 \to 2HI}$...
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How is dG=0 employed to describe equilibrium in constant volume systems?
GIBBS ENERGY
Here's the derivation of how dG=0 describes equilibrium state:
$$\Delta S_{\text{system}} + \Delta S_{\text{surrounding}} > 0$$
$\implies\Delta S_{\text{system}} + \frac{-Q}{T_{\text{...
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If a pocket of nitrogen gas is pumped in at the bottom intake of a padded tank will the pocket of gas bubble up?
I have a nitrogen gas padded tank (tank 1) which is filled from the bottom of the tank. Tank has a set point of 30 psi which adjusted as tank level changes. Also at the inlet is an additional pipe ...
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Meaning of letter K in chemistry conventions [duplicate]
The letter "K" is usually used as chemistry (or statistics/ physics) conventions, take the equilibrium constant (Kc) and rate constant (k) as two prime examples.
Are there any reasons why &...
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Is the reaction product favoured in this equilibrium: H2(g)+I2(s)><2HI(g) when K=45? [closed]
Is the reaction product favoured in this equilibrium: H2(g)+I2(s)><2HI(g) when K=45?
or is the reaction reactant favoured? because I remember that if K>1 then the product is favoured. I am ...
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Resolve inconsistency regarding percentage of ionized water molecules in the auto-ionization of water
I am relearning some chemistry in order to understand pH for a particular application. My last encounter with the subject was in high school several decades ago. I have the following question:
I read (...
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Effect of Pressure on the Position of Equilibrium
The following general reaction proceeds with decrease in amount of substance, so increasing pressure should shift the position of equilibrium to the right.
$$\ce{2 A(g) <=> B(g)}$$
But let's say ...
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Iminium formation rate between formaldehyde and secondary amine
Given the significantly more favored hydrate of formaldehyde in the presence of water under neutral conditions, can we say that this is the slow step in iminium formation? Would removing water/working ...
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Considering Le Chatelier's principle, what happens when you add more solute to a saturated solution already in equilibrium?
If I'm not wrong saturated solutions are in dynamic equilibrium. Will the addition of solute disturb the equilibrium? What exactly occurs and how to apply Le Chatelier's principle?
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Phase diagram of ammonium hydrosulfide, a volatile salt
Salts (ionic compounds) usually have low volatility due to the strong ionic bond.
However, there are exceptions. Smelling salts decompose and release ammonia gas.
What is "volatile"?
If a ...
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