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Physical Science Notes Gr 12 IEB
This is a summary for those who study IEB chemistry and physics. It was compiled by the examiners of 2018.
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 • 63 pages •
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Physical Science Notes Gr 12 IEB
Last document update: agoThis is a summary for those who study IEB chemistry and physics. It was compiled by the examiners of 2018.
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Chemistry of Living Things
The Chemistry of Living Things document consists of atomic structures, chemical bonds, organic and inorganic compounds, and peptide bonds. The Chemistry of Living Things covers Chapter 2.
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 • 13 pages •
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Chemistry of Living Things
Last document update: agoThe Chemistry of Living Things document consists of atomic structures, chemical bonds, organic and inorganic compounds, and peptide bonds. The Chemistry of Living Things covers Chapter 2.
Introduction to Physical Chemistry
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.
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 • 14 pages •
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Introduction to Physical Chemistry
Last document update: agoPhysical 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.
Chemical kinetics
rate (kinetics) Kinetics: Rate. Chemical Kinetics  The study of the rates of chemical reactions. Rate of a Reaction  The change in concentration of one of the reactants (DX), during a given period of time (Dt) The reaction rate gradually decreases as reactants are consumed.
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 • 16 pages •
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Chemical kinetics
Last document update: agorate (kinetics) Kinetics: Rate. Chemical Kinetics  The study of the rates of chemical reactions. Rate of a Reaction  The change in concentration of one of the reactants (DX), during a given period of time (Dt) The reaction rate gradually decreases as reactants are consumed.
Chemical reaction rate
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.
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 • 16 pages •
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Chemical reaction rate
Last document update: agoReaction 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.
Reaction rate(average rates and Instantenous rates)
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.
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 • 12 pages •
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Reaction rate(average rates and Instantenous rates)
Last document update: agoReaction 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.
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Rate laws
Because the rate of a reaction has dimensions of concentration per unit time, the dimensions of the rate constant k depend on the exponents of the concentration terms in the rate law. If p is the sum of the exponents of the concentration terms in the rate law, p=a b
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 • 17 pages •
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Rate laws
Last document update: agoBecause the rate of a reaction has dimensions of concentration per unit time, the dimensions of the rate constant k depend on the exponents of the concentration terms in the rate law. If p is the sum of the exponents of the concentration terms in the rate law, p=a b
Activation energy calculations
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 102/8.9 x 103) = 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.
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 • 10 pages •
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Activation energy calculations
Last document update: agoStep 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 102/8.9 x 103) = 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.
Determining Rate law
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...
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 • 15 pages •
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Determining Rate law
Last document update: agoIn 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
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.
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 • 9 pages •
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Intergrated rate laws
Last document update: agoThe 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.
Intergrated rate laws
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.
 Book & Bundle
 Class notes
 • 23 pages •
Class notes
Intergrated rate laws
Last document update: agoThe 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.