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Simple answer: When a reaction occur change in the concentrations of reactants or products per unit of time is called reaction rate .
Scientific answer: The reaction rate (rate of reaction) or speed of reaction for a reactant or product in a particular reaction is intuitively defined as how fast or slow a reaction takes place. for example, the oxidative rusting of iron under the atmosphere is a slow reaction that can take many years, but combustion of cellulose in a fire is a reaction that takes place in fractions of a second.
Wiki User
∙ 10y ago
Wiki User
∙ 15y agoRate of reaction is the speed at which a chemical reaction is taking place. Reactions do not progress at a constant speed (usually). The rate is generally dependent on the amount of one or more reactants remaining in the system.
Wiki User
∙ 11y agothe change in concentration of a reactant or product per unit of time , generally calculated and expressed in moles per liter per second.
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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.
Could heat increase the rate of reaction?
if reaction is exothermic then on heating rate of reaction wil be low,and if reaction is endothermic then rate of reaction wil be high on heating
During dynamic equilibrium how do forward reaction rate and reverse reaction rate compare?
Equilibrium at this point means that the forward reaction and the backward reaction are taking place at the same rate. The formation of the products and the reactants are at equal rate.
What happened to the rate of a reaction as the reaction progresses?
In general, and depending on the order of the reaction, the rate will decrease as the reaction progresses.
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.
Could heat increase the rate of reaction?
if reaction is exothermic then on heating rate of reaction wil be low,and if reaction is endothermic then rate of reaction wil be high on heating
What is the rate of the of a reaction?
An expression relating the rate of a reaction to the rate constant and the concentrations of the reactants
During dynamic equilibrium how do forward reaction rate and reverse reaction rate compare?
Equilibrium at this point means that the forward reaction and the backward reaction are taking place at the same rate. The formation of the products and the reactants are at equal rate.
What happened to the rate of a reaction as the reaction progresses?
In general, and depending on the order of the reaction, the rate will decrease as the reaction progresses.
What does the rate law use to determine the rate of reaction?
The rate of a reaction is calculated using the concentrations of reactants.
What happens to the reaction rate when a catalyst is used in a chemical reaction?
With a catalyst the reaction rate is higher.
What will be effect of mixing on the reaction rate?
Stirring improve the reaction rate.
What can change the rate of reaction of enzymes?
Heat can change the rate of reaction
