Ask question

Ask question

All categories

BlackZzzverrR [31]

4 years ago

5

If the equilibrium concentrations of products are much greater than those of reactants in this system, what would be the magnitu

de of the equilibrium constant, K,? K < 1 K = 1 K > 1

1 answer:

miss Akunina [59]4 years ago

5 0

Answer:

K > 1.

Explanation:

∵ The equilibrium constant K = [products]/[reactants].

Since, [products] > [reactants].

<em>∴ The equilibrium constant K > 1.</em>

You might be interested in

How much heat is lost when 575 grams molten iron at 1825 k becomes solid iron at 293 k? The melting point or iron is 1811 k.

Galina-37 [17]

Answer:

146 kJ

Explanation:

There are two heat flows in this question.

Heat lost on cooling + heat lost on solidifying = 0

q₁ + q₂ = 0

mCΔT + nΔHsol = 0

Data:

m = 575 g

C = 0.449 J·K⁻¹g⁻¹

T_i = 1825 K

T_f = 1811 K

ΔHsol = -13.8 kJ·mol⁻¹

Calculations:

(a) Heat lost on cooling

ΔT = T_f - T_i = 1811 K - 1825 K = -14 K

q₁ = mCΔT = 575 g × 0.449 J·K⁻¹g⁻¹ × (-14 K) = -361 J = -3.61 kJ

(b) Heat lost on solidifying

$n = \text{575 g} \times \dfrac{\text{1 mol}}{\text{55.84 g}} = \text{10.30 mol}\\\\q_{2} = n\Delta_{\text{sol}}H = \text{10.30 mol} \times \dfrac{\text{-13.8 kJ}}{\text{1 mol}}= \text{-142.1 kJ}$

(c) Total heat lost

q = q₁ + q₂ = -3.61 kJ - 142.1 kJ = -146 kJ

The heat lost was 146 kJ.

5 0

3 years ago

2al2o3 yields to 4al + 3o2 .. how many miles of oxygen are produced from the decomposition of 1.26 mil of Al2O3?

gladu [14]

Answer:

$\large \boxed{\text{2.52 mol Al}}$

Explanation:

2Al₂O₃ ⟶ 4Al +3O₂

n/mol: 1.26

The molar ratio is 4 mol Al:2 mol Al₂O₃.

$\text{Moles of Al} = \text{1.26 mol Al$_{2}$O}_{3} \times \dfrac{\text{4 mol Al}}{\text{2 mol Al$_{2}$O}_{3}}= \textbf{2.52 mol Al}\\\\\text{The reaction produces $\large \boxed{\textbf{2.52 mol Al}}$}$

7 0

4 years ago

Identify the neutralization reaction.

olchik [2.2K]

Answer:

3Ba(OH)₂ + 2H₃PO₄ → Ba₃(PO₄)₂ + 6H₂O

Explanation:

Neutralization reaction:

When an acid and base react they form water and salt.The reaction is called neutralization reaction.

General equation:

HX + BOH → BX + H₂O

From given reaction equations only option C is correct because only this reaction gives salt and water.

Chemical equation:

3Ba(OH)₂ + 2H₃PO₄ → Ba₃(PO₄)₂ + 6H₂O

Barium hydroxide is acting as a base. H₃PO₄ is an acid. Both these reactants react to form salt which is barium phosphate and water.

Other options are incorrect because non of these reaction produced salt and water. So option A is correct.

3 0

3 years ago

Select all the correct answers.

Brut [27]

Hi!

The reason for reviewing and replicating work of other scientists is influenced by two factors listed in the answer:

1. An experiment may have had errors that the scientist did not recognize. <u>(unintentional) </u>

2. The results of individual scientists may be influenced by bias. <u>(intentional)</u>

<em>Personal motivations may often influence a scientist to manipulate the results to best suit his/her hypothesis, consequently leading to scientific fraud. </em>

While other options listed are elements of the scientific method, they are not the reasons behind the review and replication of a scientist's work by others.

5 0

3 years ago

Read 2 more answers

You have 0.5 L of air at 203 k in an expendable container at constant pressure. You heat the container to 273 k. What is the vol

avanturin [10]

Charles law states that for a fixed mass of gas at constant pressure the volume of the gas is directly proportional to the temperature in Kelvin scale

v1/T1 = v2/T2

Where v1 is volume and T1 is temperature at the first instance

v2 is volume and T2 is temperature at the second instance

Substituting the values in the equation

0.5 L / 203 K = v2 / 273 K

v2 = 0.672 L

The volume of Air after heating is 0.672 L

6 0

3 years ago