I was looing over this question and the answer I got was not correct, I noticed that somone already posted this question up before but maybe if I provide the answer I could get an understanding of the steps.
@462degrees the reaction
heat + 2NOCl <=> 2NO + Cl2
has an equilibrium constant, Keq = 8E-2
What is Keq at 462degrees for the reaction?
the answer I have is Keq = 12.5 how did they get that
and in continuation what is the Keq @ 462degrees for the reaction
NOCl <=> NO + 1/2Cl2?
the answer provided again is 0.283
please write me the steps so I can understand.
thanks
Here is what you need to know.
For the reaction
2A + B2==> 2C and K = 10.
Then for the reaction
A + 1/2 B2 ==> C it is just sqrt 10.
For the reaction
4A + 2B2 ==> 4C Keq = 10^2 = 100
For the reaction
2C ==> 2A + B2 it is 1/10 = 0.1
In other words, the Keq for the reverse reaction is 1/Keq.
Keq for 1/2 the reaction is Keq1/2
Keq for the double of the reaction is Keq2
To find the equilibrium constant (Keq) at 462 degrees for the given reaction, we can use the concept of the equilibrium constant and the relationship between the forward and reverse reactions.
The given reaction is:
heat + 2NOCl <=> 2NO + Cl2
For this reaction, the equilibrium constant (Keq) is given as 8E-2 (or 0.08).
To find the Keq at 462 degrees, we need to use the formula:
Keq(reverse) = 1 / Keq(forward)
This formula states that the Keq for the reverse reaction is the reciprocal of the Keq for the forward reaction.
So, for the given reaction:
Keq(reverse) = 1 / 0.08 = 12.5
Therefore, the Keq at 462 degrees for the reaction heat + 2NOCl <=> 2NO + Cl2 is 12.5.
Now, let's move on to the next part of the question.
The given reaction is:
NOCl <=> NO + 1/2Cl2
To find the Keq at 462 degrees for this reaction, we need to examine the stoichiometry of the reaction.
In this case, the reaction is already balanced, and the stoichiometric coefficients are 1 for NOCl, NO, and 1/2 for Cl2.
Since there are no coefficients other than 1, we can directly use the Keq value without any modifications.
The Keq at 462 degrees for the reaction NOCl <=> NO + 1/2Cl2 is given as 0.283.
Therefore, the Keq at 462 degrees for this reaction is 0.283.
In summary:
- For the first reaction, the Keq at 462 degrees is 12.5.
- For the second reaction, the Keq at 462 degrees is 0.283.
Remember, when finding the Keq for a reverse reaction, you take the reciprocal of the Keq value. When finding Keq for reactions with different stoichiometric coefficients, you adjust the Keq value by taking the square root or raising to the appropriate power based on the coefficient ratios.