All categories

3 years ago

What is the equilibrium constant expression for the given system?

Chemistry

2 answers:

rewona [7]3 years ago

5 0

The question is incomplete, here is the complete question:

The given chemical equation follows:

$2H_2O\rightleftharpoons 2H_2+O_2$

What is the equilibrium constant expression for the given system?

Answer: The expression of equilibrium constant for the given equation is $K_{eq}=\frac{[H_2]^2[O_2]}{[H_2O]^2}$

Explanation:

Equilibrium constant is the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as $K_{eq}$

For a general chemical reaction:

$aA+bB\rightleftharpoons cC+dD$

The expression for $K_{eq}$ is written as:

$K_{eq}=\frac{[C]^c[D]^d}{[A]^a[B]^b}$

The given chemical equation follows:

$2H_2O\rightleftharpoons 2H_2+O_2$

The expression for $K_{eq}$ for above equation follows:

$K_{eq}=\frac{[H_2]^2[O_2]}{[H_2O]^2}$

Hence, the expression of equilibrium constant for the given equation is $K_{eq}=\frac{[H_2]^2[O_2]}{[H_2O]^2}$

VashaNatasha [74]3 years ago

3 0

Answer: is A

Explanation:

You might be interested in

What is the correct notation for a calcium ion whose outershell is a full octet?

horsena [70]

Ca^(2+). Calcium is an alkaline earth metal with an atomic number of 20. Its electronic configuration is (2, 8, 8, 2). From the electronic configuration it would be observed that calcium has two valence electrons. Calcium shares these two electrons with non metals like sulphur in an ionic bond to obtain an outer shell which is full octet. Let me use Sulphur. When calcium gives out its two valence electrons its electronic configuration becomes (2, 8, 8) thereby obtaining a stable out shell and the calcium ion becomes Ca^(2+). The sulphur also obtains a stable octet because it has 6 valence electron initially.

8 0

3 years ago

Nitric oxide is formed in automobile exhaust when nitrogen and oxygen in air react at high temperatures.N2(g) + O2(g) 2NO(g)The

yanalaym [24]

Answer : The correct option is, (E) 7.8 atm

Explanation :

The partial pressure of $N_2$ = 8.00 atm

The partial pressure of $O_2$ = 5.00 atm

$K_p$ = 0.0025

The balanced equilibrium reaction is,

$N_2(g)+O_2(g)\rightleftharpoons 2NO(g)$

Initial pressure 8.00 5.00 0

At eqm. (8.00-x) (5.00-x) 2x

The expression of equilibrium constant $K_p$ for the reaction will be:

$K_p=\frac{(p_{NO})^2}{(p_{N_2})(p_{O_2})}$

Now put all the values in this expression, we get :

$0.0025=\frac{(2x)^2}{(8.00-x)\times (5.00-x)}$

By solving the terms, we get:

$x=0.15atm$

The equilibrium partial pressure of $N_2$ = (8.00 - x) = (8.00 - 0.15) = 7.8 atm

Therefore, the equilibrium partial pressure of $N_2$ is 7.8 atm.

3 0

4 years ago

Two experiments were performed involving the following equilibrium. The temperature was the same in both experiments. H2(g) + I2

Leya [2.2K]

I believe that the best answer among the choices provided by the question is
D.[HI] in experiment A equals 1/2[I2] in experiment B.
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.

3 0

3 years ago

Read 2 more answers

What promotes greater hardness in minerals?

Mashutka [201]

Smaller atoms and stronger bonds promotes greater hardness in minerals.

7 0

3 years ago

Read 2 more answers

Which principal is exemplified by studying a modern river to learn about how ancient rock layers form?

faust18 [17]

A- unifromitariansim

7 0

3 years ago