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How does the presence of a base affect the rate of the reaction?
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What are situations that can effect the rate of a chemical reaction?
In a typical chemical reaction, xA + yB --> zC, the rate can be expressed as: Rate = k (T) * [A]^x * [B]^y where k = Rate constant, a function of temperature [i] = molar concentration of reagent i So, chemical reaction rate is affected by temperature and reagent concentration. Thus any variable that affects temperature (e.g. pressure or volume in the case of gases) will also affect reaction rate. However, the rate constant k is also a function of activation energy, the energy required to drive the reagents to the point where the reaction must proceed to completion. This activation energy can be lowered by the presence of a catalyst. Thus the presence of a catalyst can also affect the reaction rate.
How does the presence of enzymes affect the equilibrium position of the breakdown of carbohydrate into glucose?
Enzymes cannot affect the equilibrium of a reaction, nor can they cause a thermodynamically unfavorable reaction to proceed. They are catalysts and can only alter the activation energy and therefore the rate of the reaction.
How does an increase in temperatre affect chemical reaction?
Increases reaction rate.
Where surface area is not affect the rate of a reaction?
Surface area affect the reaction rate because the contact between finely divided particles is improved.
How do concentration affect rate?
Increasing the concentraion the reaction rate increase.
What effects does catalysts have to rate of reaction?
In the presence of catalysts the rate of reaction is higher.
What are situations that can effect the rate of a chemical reaction?
In a typical chemical reaction, xA + yB --> zC, the rate can be expressed as: Rate = k (T) * [A]^x * [B]^y where k = Rate constant, a function of temperature [i] = molar concentration of reagent i So, chemical reaction rate is affected by temperature and reagent concentration. Thus any variable that affects temperature (e.g. pressure or volume in the case of gases) will also affect reaction rate. However, the rate constant k is also a function of activation energy, the energy required to drive the reagents to the point where the reaction must proceed to completion. This activation energy can be lowered by the presence of a catalyst. Thus the presence of a catalyst can also affect the reaction rate.
How does heat affect the rate of the reaction?
Increasing the temperature the reaction rate increase.
How does the presence of enzymes affect the equilibrium position of the breakdown of carbohydrate into glucose?
Enzymes cannot affect the equilibrium of a reaction, nor can they cause a thermodynamically unfavorable reaction to proceed. They are catalysts and can only alter the activation energy and therefore the rate of the reaction.
How does concentration affect the rate of a chemical reaction?
Increasing the concentration of the reactants increases the rate of the reaction.
How does an increase in temperatre affect chemical reaction?
Increases reaction rate.
When would pressure affect the reaction rate?
if gases are involved in the reaction.
Does concentration have an affect on reaction rate?
Yes.why
Where surface area is not affect the rate of a reaction?
Surface area affect the reaction rate because the contact between finely divided particles is improved.
Why does the reaction of hydrogen and oxygen gas excel in the presence of a flame?
The rate of this reaction is increased at high temperature.
How do concentration affect rate?
Increasing the concentraion the reaction rate increase.
How is the affect of concentration changes on the reaction rate seen in the rate law?
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