The rate constant is a measure of the rate of a chemical reaction. It is usually expressed in terms of the concentration of the reactants the rate of the reaction and the time period over which the reaction takes place. The units of the rate constant depend on the type of reaction being measured. For example in a first-order reaction the units of the rate constant are usually expressed in terms of seconds. In a second-order reaction the units of the rate constant are usually expressed in terms of minutes. The rate constant can also be expressed in terms of the energy of the reactants the temperature of the reaction and the rate of the reaction.
What is the SI unit of the rate constant k?
The SI unit of the rate constant k is second^-1.
What is the rate constant k?
The rate constant k is a proportionality constant that relates the rate of a reaction to the concentrations of the reactants.
What is the value of the rate constant k for the reaction A + B –> C?
The value of the rate constant k for the reaction A + B –> C is 2.
5 x 10-3 M-1s-1.
What is the meaning of a rate constant k of 0.
5?
A rate constant k of 0.
5 means that the rate of the reaction is doubled when the concentration of reactant A is doubled.
If the rate constant of a reaction is 2.
0 what will happen to the rate if the concentration of reactant A is tripled?
If the rate constant of a reaction is 2.
0 the rate will triple if the concentration of reactant A is tripled.
Is the rate constant k a function of temperature?
The rate constant k is a function of temperature meaning that it changes with temperature.
What is the Arrhenius equation?
The Arrhenius equation is an equation that relates the rate constant k of a reaction to the activation energy and the absolute temperature.
What is the activation energy?
The activation energy is the minimum amount of energy that is needed for a reaction to occur.
What is the unit of the activation energy?
The unit of the activation energy is joules per mole or J/mol.
What is the relationship between the rate constant k and the activation energy?
The relationship between the rate constant k and the activation energy is that k increases as the activation energy increases.
What is the significance of the activation energy?
The significance of the activation energy is that it determines how fast a reaction will occur.
What is the Arrhenius equation?
The Arrhenius equation is an equation that relates the rate constant k of a reaction to the activation energy and the absolute temperature.
What is the activation energy?
The activation energy is the minimum amount of energy that is needed for a reaction to occur.
What is the unit of the activation energy?
The unit of the activation energy is joules per mole or J/mol.
What is the relationship between the rate constant k and the activation energy?
The relationship between the rate constant k and the activation energy is that k increases as the activation energy increases.
