9
votes
Why do we say the position of equilibrium is shifted even when K is the same?
Is there any specific definition of position of equilibrium?
No, it is a fuzzy concept and not very helpful. When a reaction is at equilibrium, there is a certain composition of the equilibrium ...
4
votes
Why do we say the position of equilibrium is shifted even when K is the same?
Maybe you understand better with a simple numerical example.
Suppose we are dealing with an equilibrium reaction A + B <=> C + D, where the equilibrium constant $K$ is $K = \frac{[C][D]}{[A][B]}$...
2
votes
Accepted
Acid dissociation constant from conductometric data
The molar conductivity $\Lambda_\ce{AHCl hydr}=\pu{119.4 S cm2 mol−1}$ is equivalent to the partially hydrolyzed hydrolyzed anilinium chloride, according to the hydrolysis constant.
$$\ce{PhNH3+(aq) + ...
1
vote
Accepted
metallic mercury is shaken with a solution of mercury(II) nitrate
Your expression would be correct if the mercury(I) ions were individual, separate atoms like most metals. But they are actually paired up, forming $\ce{Hg_2^{2+}}$ with a covalent bond between the ...
1
vote
Mathematics behind the graph between Gibbs energy and extent of reaction
The math is fairly straightforward if we can start from $$\Delta_r G = \Delta G ^\circ + RT\ln Q$$
Let's use the example of a very simple reaction $\ce{A <=> B}$ with an equilibrium constant of $...
1
vote
Accepted
Reaction kinetics exercise for hydrogen iodide synthesis
A mistake must have happened in your calculations, because, when I do them, I obtain :
ln$k_1 = - 8.314$;
ln$k_2 = - 0.100$;
ln$k_1$ - ln$k_2$ = $-8.314 + 0.100 = -8.214$
$\frac{1}{T_1} - \frac{1}{T_2}...
1
vote
Static Equilibrium in an open and closed system
The flask would be in equilibrium only after most of the water evaporates -- there would always be an exchange between air (assuming it has some humidity above zero) and the water adsorbed to the ...
1
vote
Acid dissociation constant from conductometric data
This answer is more about the chemistry and how the conductivity relates to the ions present, and does not show a numerical solution. For that, check the answer by Poutin.
Here is the acid/base ...
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