Lec 14 - A catalyst reduces the activation energy for a...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
1 1 A catalyst reduces the activation energy for a reaction from 27.0 kJ/mol to 2.0 kJ/mol. By what factor is the rate accelerated? Assume the frequency factor A does not change, and the temperature is 300 K. R = 8.314 J mol -1 K -1 A) 2.25 X B) 22.5 X C) 225 X D) 2,250 X E) 22,500 X a RT E Ae k 2 Could also be given the rate constants and T and be asked for the change in activation energy.   cat wo cat wo wo cat wo cat a E E RT RT E RT E RT E RT E RT E RT E wo cat RT E e e e e e e k k Ae k 1 Or given k cat , k wo , T, and E wo and asked for E cat .
Background image of page 1

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

View Full DocumentRight Arrow Icon
2 3 HCl(g) + H 2 O(l) H 3 O + (aq) + Cl - (aq) Chapter 16 Acids & Bases The Brønsted-Lowry Definition An acid is a chemical species that donates a hydrogen ion (proton, H + ) in a chemical reaction. A base is a chemical species that accepts a hydrogen ion in a chemical reaction. Aqueous acid-base chemistry occurs in a water solution or environment and often involves water as a reactant or product. 4 The material scheduled for today was covered in CHE 129 & 131. Today’s PwrPt notes will help you review this material. We may not cover it all in class. First, let’s reflect on Exam 1. What are the two overriding goals of this course? What are the two types of questions you think most students found most challenging on Exam 1? What can be done to do better on such challenging questions?
Background image of page 2
3 5 Course Goals Master the concepts and procedures in General Chemistry!
Background image of page 3

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

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 13

Lec 14 - A catalyst reduces the activation energy for a...

This preview shows document pages 1 - 4. Sign up to view the full document.

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