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The rate constant include all parameters ((but not concentration) affecting the rate of a chemical reaction.
The expression "specific reaction rate" is used when the molar concentration of reactants is a unit.
Wiki User
∙ 7y ago
Wiki User
∙ 11y ago1) rate constant varies with temperature while rate varies with temperature and Concentrations of reactants....
2) unit of rate constant depends on the order of reaction while the unit of rate of reaction is always (mol/dm3)*1/sec
Wiki User
∙ 11y agoCommonly it is linearly proportional to concentration, sometimes even squared or cubed. In rare cases it is not proportional but independent eg. with nuclear decay.
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Is defined as the number of atoms molecules or ions that react in a specific amount of time to produce products?
Reaction Rate
When giving the rate of a chemical reaction why would it be significant to know that the reaction rate is an average reaction rate?
Reaction rates are dependent on the concentration of reactants. As a reaction proceeds, the reactants are used up and thus their concentration is lowered. THis means that the maximum rate of reaction will be at or immediately after time zero, when the reaction is only just begun, and the minimum will be when one or more of the reactants' concentrations have reached zero. Thus, any rate stated for the reaction would only hold for a specific time in the reaction progress and cannot be extrapolated to cover all of that progress. So a mean rate of reaction must be used; this can tell a person, when combined with either the time of beginning, time of ending, or the initial concentrations, what any of the others were for the reaction in question. This is impossible to do if given a specific rate and the time it applied to; you cannot calculate any new information from just those two data.
Catalysts increase the rate of chemical reaction?
YES!!! TRue. Inhibitors decrease the rate of reaction, especially if ther reaction is too fast. Enzymes are very specific catalysts. They aid a reaction to go forward, but only at a very specific temperature and pH environment.
What measures of how fast reaction occurs?
The measure is the rate of reaction.
What is a material that slows down the rate of a chemical re action?
In general, a material that decreases the rate of a chemical reaction is called an inhibitor.
How do you differentiate between reaction rate and specific rate constant?
The reaction rate is the rate at which the moles of substance change that varies with both temperature and concentration of the reactants. The specific rate constant is a proportionality constant that will vary only with temperature.
What does a double arrow mean in a chemical reaction?
Equilibrium, where the rate of the forward reaction is equal to the rate of the reverse reaction.
Is defined as the number of atoms molecules or ions that react in a specific amount of time to produce products?
Reaction Rate
When giving the rate of a chemical reaction why would it be significant to know that the reaction rate is an average reaction rate?
Reaction rates are dependent on the concentration of reactants. As a reaction proceeds, the reactants are used up and thus their concentration is lowered. THis means that the maximum rate of reaction will be at or immediately after time zero, when the reaction is only just begun, and the minimum will be when one or more of the reactants' concentrations have reached zero. Thus, any rate stated for the reaction would only hold for a specific time in the reaction progress and cannot be extrapolated to cover all of that progress. So a mean rate of reaction must be used; this can tell a person, when combined with either the time of beginning, time of ending, or the initial concentrations, what any of the others were for the reaction in question. This is impossible to do if given a specific rate and the time it applied to; you cannot calculate any new information from just those two data.
How can the rate law for a a chemical reaction be used to determine an instantaneous reaction rate?
The Instantaneous rate, or the rate of decomposition at a specific time, can be determined by finding the slope of a straight line tangent to the curver at that instant.
Catalysts increase the rate of chemical reaction?
YES!!! TRue. Inhibitors decrease the rate of reaction, especially if ther reaction is too fast. Enzymes are very specific catalysts. They aid a reaction to go forward, but only at a very specific temperature and pH environment.
What is the effect of a catalyst on a chemical reaction?
To Cause a Chemical reaction. A properly chosen, specific catalyst is able to speed up the rate of a particular chemical reaction.
What are the effect of a catalyst on a chemical reaction?
A properly chosen, specific catalyst is able to speed up the rate of a particular chemical reaction
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 does the presence of an enzyme cause?
Enzymes are biological catalysts which cause the rate of a reaction to increase (by providing an alternate reaction pathway with a lower activation enthalpy). They are very specific to the reaction they catalyse.
What describes a reaction that reaches equilibrium?
The product and reactants reach a final, unchanging level.
