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Results tagged with equilibrium
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user 101509
The state in which both reactants and products are present at concentrations which have no further tendency to change with time.
9
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3
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855
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Why is standard state useful?
We fill the container with $\ce{A}$ and after some time has passed equilibrium is established. … At least for gases it doesn't make sense because in equilibrium is their partial pressure that matters. …
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0
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Do the differential expressions of second law of thermodynamics imply a smooth increase in e... [closed]
Suppose that the system is at equilibrium state (state $1$) at time $t$. Something happens (e.g. a chemical reaction takes place) so the system will reach a new equilibrium state (state $2$). … To be honest I haven't seen any reaction reaching equilibrium in that way but I can't find a reason why it should not behave this way. …
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2
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1
answer
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Can we have an equilibrium constant for a reaction at constant volume?
Can the equilibrium state now be predicted? … I mean if the piston was movable (e.g. coupled to an external pressure of $1$ atm) the system would reach equilibrium and we could find the equilibrium state (e.g. the gas composition) by using the equilibrium …
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1
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2
answers
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Is it valid to calculate concentrations given equilibrium constant and initial concentration?
Now if we are given that initial we have $x$ mol of $\ce{A}$ and no amount of $\ce{B}$ and $\ce{C}$, one can calculate the amount of B and C present at equilibrium using the equilibrium constant $K$:
$ … It is a common exercise in many general Chemistry textbooks where you are given a reaction with an equilibrium constant and you must find the concentrations at equilibrium. …
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Understanding Pourbaix diagram
I was taught that the lines in the Pourbaix diagrams are equilibrium lines. … The reaction describing this equilibrium line is (with equilibrium constant $K$):
$$\ce{2H+_{(aq)} + 2e- <=> H2_{(g)}}$$
Now at equilibrium taking the $\log K$ and equilibrium constant we obtaing:
$$\log …
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