100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary Kinetics I £3.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. PEARSON (PEARSON)
  4.  
  5. Chemistry 2015
  6.  
  7. Unit 9 - Kinetics I (9CH0)

Summary

Summary Kinetics I
 64 views  0 purchase

Detailed notes on kinetics I. Notes written using Edexcel Chemistry textbooks, past papers and more. Written by a student with all A*s at GCSE, 3A* predictions at A Level and with an offer for Natural Sciences at Cambridge.

Preview 1 out of 4  pages

Document information

  • No
  • Kinetics i
  • March 30, 2020
  • 4
  • 2019/2020
  • Summary

Subjects

Connected book

book image

Book Title:

Author(s):

  • Edition:
  • ISBN:
  • Edition:

More summaries for

All for this textbook (12)

Written for

All documents for this subject (6)

Seller

avatar-seller
natland9

Reviews received

Content preview

Topic 9: Kinetics I
1. understand, in terms of collision theory, the effect of a change in
concentration, temperature, pressure and surface area on the rate of a
chemical reaction
Factors affecting rate of reaction:
Temperature:
Increasing the temperature means the particles on
average will have more kinetic energy and move faster.
A greater proportion of molecules will therefore have
activation energy and be able to react. The molecules
are moving faster so will collide more often and with a
greater force, increasing rate of reaction.

Pressure:
Increasing the pressure of a gas means there are more
particles in a given volume, so there will be more
collisions, increasing the frequency of successful
collisions.

Concentration:
Increasing the concentration in a solution means there
are more reacting particles in a given volume, so the
particles will collide more frequently, increasing the
chance of a successful collision.

Surface Area:
Increasing surface area means there are more particles
exposed and available to react, so there will be more
collisions between reactant particles, increasing the
chance of successful collisions.


2. understand that reactions only take place when collisions take place with
sufficient energy, known as activation energy
Collision Theory:
A reaction between two particles won’t take place unless:
 The particles are facing in the right direction
 They collide with the minimum amount of kinetic
energy (activation energy)

Activation energy: the minimum quantity of energy which the reacting species must possess in
order to undergo a specified reaction
Particles need activation energy to break the bonds to start the reaction. Reactions with low
activation energy will happen quite easily. Reactions with high activation energies may need to
be given extra energy by heating them so the particles have activation energy.



EA on a reaction profile diagram:

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller natland9. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £3.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

53068 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£3.99
  • (0)
Add to cart
Added