ModelQuestion-Answers I

ModelQuestion-Answers I - Chemistry 6C Model...

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

View Full Document Right Arrow Icon
Chemistry 6C Model Questions/answers 1. It was once thought that all spontaneous reactions were exothermic. How do we know that this is not true? a. There are counter examples. b. Other effects contribute to the heat of a reaction. c. Heat is not a good measurement of energy. d. Heat is not related to speed. e. Heat is not a measure of the activation energy. 2. What are the criteria for a spontaneous process? a. G system < 0 b. S system > 0 c . S universe > 0 d. H system < 0 3. What is meant by the phrase "the reaction is nonspontaneous"? a. The reaction will occur only if you apply heat or work energy to it. b. The reaction is very slow. c. The reaction does not start immediately. d. The reaction will never occur under any circumstances. 4. Which, if any, of the following is a spontaneous process? a. CO 2 (g) C(s) + O 2 (g) b. 2 H 2 O(l) + CO 2 (g) CH 4 (g) + 2 O 2 (g) c. sugar(aq) sugar(s) + H 2 O(l) 5. Which substance below should have the highest absolute molar entropy at 25 °C?
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 / 2

ModelQuestion-Answers I - Chemistry 6C Model...

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