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deanlmartin
09.07.2019 •
Chemistry
The equilibrium constant for the equilibrium, 3a+ 2b ↔ 2d + e, is 4.22 x 10-3 . what is the equilibrium constant for the equilibrium: d + (1/2)e ↔ (3/2)a + b? 2.1110-3237-2.1110-315.4
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Ответ:
Option D: 15.4
There are following rules for manipulating equilibrium constant:
1. On adding two equilibrium reactions, their equilibrium constant gets multiplied.
For example:![A\rightarrow B (K_{1})](/tpl/images/0067/5965/d9900.png)
On adding two reactions,
2. On subtracting two equilibrium reactions, their equilibrium constant gets divided.
For example:![A\rightarrow B (K_{1})](/tpl/images/0067/5965/d9900.png)
On subtracting two reactions,
Or,
3. If an equilibrium reaction is multiplied by any constant, it goes to the power of its equilibrium constant.
For example:![A\rightarrow B (K_{1})](/tpl/images/0067/5965/d9900.png)
Thus,
4. On reversing an equilibrium reaction, the equilibrium constant of reversed reaction becomes inverse of the original value.
For example:![A\rightarrow B (K_{1})](/tpl/images/0067/5965/d9900.png)
Thus,
Now, the given equilibrium reaction is as follows:
To get the desired reaction, first reverse the above reaction as follows:
Now, multiply the above reaction with 1/2,
Thus,
Therefore, equilibrium constant for the resultant reaction is 15.4 that is option D.
Ответ:
0.13/0.36
Explanation: