Exam (elaborations)
AQA Chemistry Equilibria Q&A
- Module
- Unit 3.1.5 - Kinetics
- Institution
- AQA
AQA Chemistry Equilibria Q&A, can be used for exam practice, as it contains exam questions
[Show more]
Seller
Follow
Content preview
Define Activation Energy Activation energy is the minimum energy particles required toreact when they collide
What does the Maxwell-Boltzmann Distribution show? The Maxwell-Boltzmann
distribution shows the spread of energies that a molecule of a gas/liquid have at a particular
temperature
What does the peak show on the Maxwell Boltzmann distribution? The peak of the Maxwell
Boltzmann shows the MOST PROBABLE energy
What does the area under the curve represent? The area under the curve represents the
total number of particles present
What does the line NEXT to the PEAK of the curve represent? The line NEXT TO the
peak of the curve represents the Mean Energy of the particles
Why does the Maxwell-Boltzmann Distribution go through the origin? The maxwell
Boltzmann Distribution goes through the origin as there are no molecules with zero energy
Why can the energy distribution never reach the X-Axis? The curve can never reach the X-
Axis, as there is no maximum energy for molecules
How can a reaction go to completion if few particles have energy greater than Ea? particles
can GAIN energy by collisions
What happens to the Maxwell-Boltzmann Distribution when the temperature is raised?
When the temp is raised, the distribution shifts to the right and lower down, indicating
more molecules have higher energies. The curve under the graph should remain constant
Define Rate of Reaction Rate of reaction is the change in concentration of a substance in
unit time
Increasing Concentration/Pressure effect on Rate of Reaction Increasing the
concentration/Pressure means there are more particles per unit volume, so the particles
collide with a greater frequency, thus there is a higher frequency of effective collisions
Effect of increasing surface area on the rate of reaction Increased surface area will cause
successful collisions to occur more frequently between reactant particles, this increase the
rate of reaction.
Define Catalyst Increase reaction rate without being used up
How do Catalysts increase the rate? Catalysts provide an alternate route with a lower Ea,
meaning more particles have E>Ea and so the frequency of successful collisions increases.
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card for the summaries. There is no membership needed.
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 Viswanathan. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
65040 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 15 years now
Recently viewed by you
Package deal ·
Samenvattingen tentamens HEM3
Package deal ·
Voordeelbundel bovenste extremiteit
Exam (elaborations) ·
Geriatrics, Test Questions Exam 1 2024
Exam (elaborations) ·
SCRUM PSM1 EXAM QUESTIONS AND ANSWERS
Summary ·
Ontwerptheorie - hoofdstuk 4 en 5
Exam (elaborations) ·
NSG 526 Exam 2 Study Guide 2024
Package deal ·
CPPB Exam | package deal 2023/24
Package deal ·
Werk, Sport, Hobby uitwerkingen
