(Answered): Which one of the following will change the value of an equilibrium constant, K? A) changing…

Help please
one of the following will change the value of an equilibrium constant, K? 30. Which A) changing the temperature B) adding other substances that do not react with any of the species involved in the equilbrium C) varying the initial concentration of reactants D) varying the initial concentration of products E) all of these 31. The reaction, A+BX+Y, has K 997 at 472 K. At equilibrium A) the reaction is product favored B) the reaction is reactant favored C) roughly equal amounts of products and reactants are present D) only products exist E) only reactants exist 32. Which of the reactants and/or products do not appear in the properly written heterogeneous Kc expression for the reaction: Nico,(s) + 2H (aq) 근 N产(aq) + CO(g) + H20(1) A) NiCOs(s) only B) CO2(g) and H20(0) C) H.(aq) and N?(aq) D) CO-(g) only E) Nico:(s) and H200 33. For the endothermic reaction: CaCO(s) 근 Ca0(s) + CO2(g) only would favor shifting the equilibrium position to form more CO-(g) A) increasing the system temperature B) decreasing the system temperature C) increasing the system pressure D) increasing both the system temperature and the system pressure E) both decreasing the system temperature and increasing the system pressure

Which one of the following will change the value of an equilibrium constant, K? A) changing the temperature B) adding other substances that do not react with any of the species involved in the equilibrium C) varying the initial concentration of reactants D) varying the initial concentration of products E) all of these The reaction, A + B X + Y, has K_c = 997 at 472 K. At equilibrium _____. A) the reaction is product favored B) the reaction is reactant favored C) roughly equal amounts of products and reactants are present D) only products exist E) only reactants exist Which of the reactants and/or products do not appear in the properly written heterogeneous K_c expression for the reaction: NiCO_3 (s) + 2H^+ (aq) Ni^2+ (aq) + CO (g) + H_2O (l) A) NiCO_3(s) only B) CO_2(g) and H_2O(l) C) H^+(aq) and Ni^2+(aq) D) CO_2(g) only E) NiCO_3(s) and H_2O(l) For the endothermic reaction: CaCO_3(s) CaO(s) + CO_2(g) only _____ would favor shifting the equilibrium position to form more CO_2(g) A) increasing the system temperature B) decreasing the system temperature C) increasing the system pressure D) increasing both the system temperature and the system pressure E) both decreasing the system temperature and increasing the system pressure

Expert Answer

Answer

1.Equilibrun constant is function of temperature only and hence change in temperature changes the equilibrium constant. If concentration changes, new equilibrium is established without distrubing the equilibrium constant. ( A is correct)

2. Gibbs free energy (deltaG)= -RT lnK, -ve value of deltaG favors the forward reaction. for that K has to be >1. in the present case K is >1, deltaG is -ve and the reaction is product favored.

3. when writing the expression for equilibrium constant, the pure substance in liquid form and the solid will not be seen in the expression becasue their activity is 1. Hence in the present case, NICO3(s) and H2O(l) will not appear in the equilibrium constant equation.( E is correct)

4 . for the reaction, CaCO3(s)——->CaO(s)+CO2(g)

K= pCO2, p = pressure of CO2. Higher the pressure of CO2, higher the value of CO2 and hence higher the reaction to the right. The reaction is endothermic so increase in temperature as per Lechatlier principle favors the endothermic direction. So high pressure and high temperature favors the formation of CO2. ( E is correct)

iWriteHomework
Order NOW for a 10% Discount
Pages (550 words)
Approximate price: -

Why Us?

Top Quality and Well-Researched Papers

All ourbpapers are written from scratch. In fact, Clients who ask for paraphrasing services are highly discouraged. We have writers ready to craft any paper from scratch and deliver quality ahead of time.

Professional and Experienced Academic Writers

Our writers keeps you posted on your papers progress - providing you with paper outline/draft. You are also at liberty to communicate directly with your writer.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time, in many cases quite ahead of time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.

Essays

Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.

Admissions

Admission Essays & Business Writing Help

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.

Reviews

Editing Support

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.

Reviews

Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied with the service offered.

× Contact Live Agents