che110c_ps5_jba10 - CHE110C Problem Set 5 (due June 2nd)...

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

View Full Document Right Arrow Icon
CHE110C Spring 2010 Ames 1 PS5 Problem Set 5 (due June 2 nd ) 1. Some exercises with first-order kinetics A P , dA [ ] dt = kA [] . a. The integrated first-order rate law is usually expressed as [ A ] = [ A ] 0 e kt . Derive an alternative integrated first-order rate law expressed in terms of half life (t 1/2 ). (Hint: t 1/2 = ln(2)/k, substitute for k, and solve for [A] as a function of t.) b. Show that the time required for the reactant concentration to decrease from its starting value [ A ] 0 to some final concentration ([ A ] = f [ A ] 0 ) is given by t f =− ln f k for a first-order process. 2. Consider the simultaneous formation of multiple products in a chemical reaction. Rate law = dt = ( k 1 + k 2 ) A a. Referring to problem 1b above, find t f for this process. b. Given the initial concentrations of products ( B [ ] 0 and C [ ] 0 ) are both zero, find kinetic expressions for the formation of B and C [ ] as a function of time in terms of A 0 . c. What is the final value of B C once the reaction is complete?
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.

This note was uploaded on 06/22/2010 for the course CHEM 110C taught by Professor Ame during the Spring '09 term at East Los Angeles College.

Page1 / 2

che110c_ps5_jba10 - CHE110C Problem Set 5 (due June 2nd)...

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