New answers tagged equilibrium
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Mass conservation in chemical equilibria
In general, the total amount after reaction finalizes is given by:
$$n=n_0+\upsilon x$$
In terms of mass, this becomes:
$$\frac{m}{M}=\frac{m_0}{M_0}+\upsilon x$$
Which is equivalent to:
$$m=\frac{M}{...
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How do you use entropy and enthalpy to explain how chemical reactions come to equilibrium?
For a reaction (A = B + heat) to reach equilibrium at constant temperature energy must be transferred to the environs. This means that the system Delta H is negative and, since energy is transferred ...
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Accepted
How do you use entropy and enthalpy to explain how chemical reactions come to equilibrium?
[OP] But how can, say, A becoming B reverse in entropic favourability purely based off the amounts of A and B?
The entropy of reaction is dependent on the reaction coefficient Q (so on the activities ...
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How can adding a strong base to a weak base be the same as a strong base in solution problem?
It might (or might not) be helpful to derive this result irectly from the mathematical equations.
Say the strong base is $\ce{KOH}$ and the weak base is $\ce{NH3}$. There are four known quantities: ...
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1
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Accepted
How can adding a strong base to a weak base be the same as a strong base in solution problem?
You have a weak base, like ammonia in water. Then you add a strong base, like sodium hydroxide. This is the equilibrium of ammonia in water
$NH_3 + H_2O \rightleftarrows NH_4^+ + OH^- $
Now the sodium ...
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3
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Accepted
Derivation of Gibbs phase rule
The remaining equations you point in your answer refer to the chemical equilibrium established between all the species across all the phases. I illustrate the scenario that you raised in the comments ...
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