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MTSU / Chemistry / CHEM 1120 / What will happen to the reaction rate if the concentration of a is hal

What will happen to the reaction rate if the concentration of a is hal

What will happen to the reaction rate if the concentration of a is hal

Description

School: Middle Tennessee State University
Department: Chemistry
Course: General Chemistry II
Professor: Ngee chong
Term: Fall 2016
Tags: Chemistry
Cost: 25
Name: Chemistry: Sep. 26-30
Description: These notes cover material from class from this week!
Uploaded: 09/29/2016
1 Pages 48 Views 1 Unlocks
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Half-Life (t1/2)


What will happen to the reaction rate if the concentration of a is halved?



• Time of a chemical reaction where the concentration of the reactant decreases by half o ln At/A0 = -0.693 = -kt

o t1/2 = 0.693/k

▪ Example: An isotope has a half life of 14.3 days. How long does it take for  95% of the sample to decay?

Activation Energy (Ea)

• Energy of molecular collisions reactants must have to break bonds and therefore form  products

• Arrhenius Equation Don't forget about the age old question of What did weeks v united states establish?

o k = Ae-Ea/RT 

▪ A- collision frequency factor

▪ R- universal gas constant (note units)


How do you determine the reaction mechanism of a reaction?




What is the energy required for reactants to form products?



If you want to learn more check out What are autonomies and when were they established?
We also discuss several other topics like What are the four major components of the central nervous system?

▪ T- temperature in kelvin

Reaction Mechanisms  

• Steps that show how reaction occurs (molecular level) We also discuss several other topics like What is scaffold for biochemical activities?

• Needs to be consistent with the rate law We also discuss several other topics like What are the properties of fluid?
If you want to learn more check out What is the meaning of a single sample t-test

o Elementary Step- single process

o Intermediate- species produced in one step and used in the next step

o Molecularity- number of ions, atoms, or molecules in an elementary step

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