6C-ReingoldP-exam2

6C-ReingoldP-exam2 - PRACTICE TEST (MIDTERM #2) CHEM 6C...

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

View Full Document Right Arrow Icon
PRACTICE TEST (MIDTERM #2) CHEM 6C – RHEINGOLD [Answers for multiple-choice questions are italicized. Others are answered at the end of the question, but might have been asked as multiple choice. For questions without answers, your text, class notes or your own powers of reason and deduction should be used.] Do not consider the length of test. 1. Which statement regarding a catalyst is false: a. It lowers Ea, but does not affect the mechanism b. It only changes the mechanism for the reaction c. It affects the rate of the reaction by lowering Ea d. It changes the rate by making the products more stable e. all are true 2. Which of the following is true about surface catalyzed reactions: a. The rate is independent of the surface area b. The reactants form real chemical bonds to the surface c. Surface reactions tend to be endothermic d. A one-step mechanism is a characteristic of a surface catalyzed reaction e. The Haber process is not surface catalyzed 3. In the reaction, A Æ products, the initial concentration of A is 0.86 M, and 40 sec later it is 0.78 M. The initial rate is: [Ans. = 8.9 x 10
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

6C-ReingoldP-exam2 - PRACTICE TEST (MIDTERM #2) CHEM 6C...

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

View Full Document Right Arrow Icon
Ask a homework question - tutors are online