# hw 4 ch 302 - obennoskey(blo242 – Homework#4 – Holcombe...

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: obennoskey (blo242) – Homework #4 – Holcombe – (52460) 1 This print-out should have 10 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points For the heterogeneous reaction 2 MnO 2 (s) ⇀ ↽ 2 MnO(s) + O 2 (g) , the equilibrium constant expression for K c is which of the following? 1. K c = k [MnO 2 ] 2. K c = [O 2 ] correct 3. K c = [MnO 2 ] [MnO] [O 2 ] 4. K c = 1 [O 2 ] 5. K c = [MnO] [O 2 ] [MnO 2 ] Explanation: For heterogeneous reactions, only gaseous reactants and species are taken into considera- tion when writing K c expressions. Therefore, K c = [O 2 ]. 002 10.0 points Which of the following is TRUE? 1. A large value of K means that the equi- librium concentrations of products are large compared to the equilibrium concentrations of the reactants. correct 2. When the value of Q is large, the equilib- rium lies on the product side of the equilib- rium reaction. 3. When the value of K is small, the equi- librium lies on the product side of the equilib- rium reaction. 4. A small value of K means that the equilib- rium concentrations of the reactants are small compared to the equilibrium concentrations of the products. 5. When the value of K is large, the equilib- rium lies on the reactant side of the equilib- rium reaction....
View Full Document

## This note was uploaded on 04/14/2010 for the course CH CH302 taught by Professor Mccord during the Spring '10 term at University of Texas at Dallas, Richardson.

### Page1 / 3

hw 4 ch 302 - obennoskey(blo242 – Homework#4 – Holcombe...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online