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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
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoRate of reaction tells us how fast our reactants are getting converted into products.
Typical equation for calculating rate of reaction is Rate = concentration of products raised to their coefficient over concentration or reactant raised to their coefficients.
Rate of reactions becomes very important when talking about organic reactions.
Wiki User
∙ 15y agoreaction rate = change in concentration / change in time
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What measures of how fast reaction occurs?
The measure is the rate of reaction.
What affects reactions the least size concentration temperature catalyst?
the experimental rate law of a simple reaction A->B+C is v=k[A].calculate the change in the reaction rate when:(a) the concentration of A is tripled (b) the concen-tration of A is halved
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.
What happens to the reaction rate when a catalyst is used in a chemical reaction?
With a catalyst the reaction rate is higher.
What is a property of a reaction that has reached equilibrium?
the rate of the forward reaction is greater than the rate of the reverse reaction.
Why calculate initial rate of reaction from a curve rather than measure how much gas is released?
You will calculate the initial rate of reaction from a curve rather than measure how much gas is released because you are looking at products in there molecular nature.
What is the need of ice cold water in chemical kinetics experiment?
to maintain the reaction so that we calculate the rate of reaction at that particular time.
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 equation would calculate the rate constant from initial concentration?
The formula is:k(T) = ([A][B])/r where:- [A] and [B] are the concentrations of reactants- r is the reaction rate
What affects reactions the least size concentration temperature catalyst?
the experimental rate law of a simple reaction A->B+C is v=k[A].calculate the change in the reaction rate when:(a) the concentration of A is tripled (b) the concen-tration of A is halved
What describes a reaction that reaches equilibrium?
The product and reactants reach a final, unchanging level.
How do you calculate the rate of photosynthesis in the hill reaction?
By extrapolating the differential equation, adjacent to the the hypotenuse of the slope, when your results are plotted on the graph. Mathematically it can be worked out using the -b/2a formulae to extrapolate the vertex on the curve which can then beused to calculate the maximum value. This should in the end help to calculate the rate of photosynthesis in the hill reaction. Hope this was helpfull. By extrapolating the differential equation, adjacent to the the hypotenuse of the slope, when your results are plotted on the graph. Mathematically it can be worked out using the -b/2a formulae to extrapolate the vertex on the curve which can then beused to calculate the maximum value. This should in the end help to calculate the rate of photosynthesis in the hill reaction. Hope this was helpfull.
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.
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.
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
