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![Activation energy](/docpics/5f2c84a6c4cb3_783186.jpg)
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Activation energy
- Notes de cours • 16 pages • 2020
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Activation energy, in chemistry, the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.The role of activation energy in a chemical reaction is to start the reaction by arranging the reactants appropriately and breaking their existing...
![Reaction rate(average rates and Instantenous rates)](/docpics/5f2c8abf58619_783197.jpg)
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Reaction rate(average rates and Instantenous rates)
- Notes de cours • 12 pages • 2020
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Reaction rate, in chemistry, the speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration (amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.
![Introduction to Physical Chemistry](/docpics/5f2c8c9fbb26f_783200.jpg)
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Introduction to Physical Chemistry
- Notes de cours • 14 pages • 2020
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Physical chemistry is the study of macroscopic, and particulate phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics, analytical dynamics and chemical equilibrium.
![Determining Rate law](/docpics/5f2c88671d750_783194.jpg)
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Determining Rate law
- Notes de cours • 15 pages • 2020
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In order to determine a rate law we need to find the values of the exponents n, m, and p, and the value of the rate constant, k. If we are given the reaction orders for a reaction, we have the values of the coefficients we need to write the rate law.Rate laws or rate equations are mathematical expressions that describe the relationship between the rate of a chemical reaction and the concentration of its reactants. In general, a rate law (or differential rate law, as it is sometimes called) takes...
![Intergrated rate laws](/docpics/5f2c8776656d6_783193.jpg)
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Intergrated rate laws
- Notes de cours • 9 pages • 2020
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The rate law is a differential equation, meaning that it describes the change in concentration of reactant(s) per change in time. Using calculus, the rate law can be integrated to obtain an integrated rate equation that links concentrations of reactants or products with time directly.
![Activation energy calculations](/docpics/5f2c8957204e5_783195.jpg)
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Activation energy calculations
- Notes de cours • 10 pages • 2020
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Step 1: Convert temperatures from degrees Celsius to Kelvin. T = degrees Celsius 273.15. T1 = 3 273.15. ...
Step 2 - Find Ea ln(k2/k1) = Ea/R x (1/T1 - 1/T2) ln(7.1 x 10-2/8.9 x 10-3) = Ea/8.3145 J/K·mol x (1/276.15 K - 1/308.15 K) ...
Answer: The activation energy for this reaction is 4.59 x 104 J/mol or 45.9 kJ/mol.
This is a practice chemistry final exam . Questions only
Description of States of Matter
Solutions with Equations
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