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Dividing the reaction rate of a given reactant or product by its stoichiometric coefficient?
Normalizes the rate and gives the rate of the overall reaction. A & B :) To my fellow JHU chem course students haha.
Define law of mass action?
The law of mass action states that the rate of a chemical reaction is directly proportional to the concentration of reacting species raised to their respective stoichiometric coefficients. In other words, the rate of a reaction is determined by the concentrations of the reactants involved. The law is used to express the relationship between the concentrations of reactants and products in equilibrium systems.
How does concentraition affect the rate of a chemical reaction?
Usually, increasing concentration of reactants increases the rate of reaction, but increasing concentrations of products reduces the rate of reaction. However, if one reactant is already present in large stoichiometric excess over another, increasing the concentration of that reactant may not increase the rate of reaction at all, and if the free energy of reaction is large enough in magnitude, increasing the concentration of products may not reduce the rate of reaction at all.
How do you calculate the rate of reaction?
The formula is:r = k(T) · [A]n'· [B]m' where:- r is the rate of reaction- k is the rate constant- [A] and [B] are the concentrations of the reactants- n' and m' are the reaction orders- T is the temperature
What measures of how fast reaction occurs?
The measure is the rate of reaction.
Dividing the reaction rate of a given reactant or product by its stoichiometric coefficient?
Normalizes the rate and gives the rate of the overall reaction. A & B :) To my fellow JHU chem course students haha.
Define law of mass action?
The law of mass action states that the rate of a chemical reaction is directly proportional to the concentration of reacting species raised to their respective stoichiometric coefficients. In other words, the rate of a reaction is determined by the concentrations of the reactants involved. The law is used to express the relationship between the concentrations of reactants and products in equilibrium systems.
How temperature related to activation energy?
The relation is:k is the reaction rate coefficient.
What is the significance of rate constant?
A coefficient of proportionality relating the rate of a chemical reaction at a given temperature to the concentration of reactant (in a unimolecular reaction) or to the product of the concentrations of reactants.
What is a 1.5 order of reaction?
A + B --> C has non-elementary reaction rate equation -rA = kCACB1/2 The exponent of CA is 1, the exponent of CB is 1/2, for an overall reaction order of 1 + (1/2) = 1.5. Do not let the stoichiometric coefficients from the reaction mislead you. It has to do with the rate equation for a given reaction, not the (net) chemical reaction itself.
How does concentraition affect the rate of a chemical reaction?
Usually, increasing concentration of reactants increases the rate of reaction, but increasing concentrations of products reduces the rate of reaction. However, if one reactant is already present in large stoichiometric excess over another, increasing the concentration of that reactant may not increase the rate of reaction at all, and if the free energy of reaction is large enough in magnitude, increasing the concentration of products may not reduce the rate of reaction at all.
How do you calculate the rate of reaction?
The formula is:r = k(T) · [A]n'· [B]m' where:- r is the rate of reaction- k is the rate constant- [A] and [B] are the concentrations of the reactants- n' and m' are the reaction orders- T is the temperature
What is the law of active mass?
This law relates rate of reaction with active mass or molar concentration of reactants. At a given temperature, the rate of a reaction at a particular instant raised to powers which are numerically equal to the numbers of their respective molecules in the stoichiometric equation describing the reaction." Active mass = molar concentration of the substance = (number of gram moles at the substance)/(volume in litres) = (w/M)/V=n/V
What measures of how fast reaction occurs?
The measure is the rate of reaction.
What is the speed at which a reaction occurs called?
The chemical term is reaction rate.
What describes a reaction that reaches equilibrium?
The product and reactants reach a final, unchanging level.
What effect does the concentration of reactants have on the the rate of a reaction?
The effect of concentration of reactants on rate of reaction depends on the ORDER of the reaction. For many reactions, as the concentration of reactants increases, the rate of reaction increases. There are exceptions however, for example a zero order reaction where the rate of reaction does not change with a change in the concentration of a reactant.
