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Cassandra Carroll

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11y ago

A chemical reaction is nothing but the conversion of the reactant molecules into product molecules. By increasing the surface area of the reactants more number of reactant molecules are exposed which eventually increases the rate of the reaction...for example, powdered chalk piece dissolves faster in water than a piece of chalk.


as surface areas increases, the rate of the reaction increases

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11y ago

A chemical reaction is nothing but the conversion of the reactant molecules into product molecules. By increasing the surface area of the reactants more number of reactant molecules are exposed which eventually increases the rate of the reaction...for example, powdered chalk piece dissolves faster in water than a piece of chalk.

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9y ago

To a reaction to happen, the reactants should collide with each other. When the surface area of the reactants is increased, the number of collides increases. Therefor the rate of the reaction increases.

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13y ago

The larger the surrface area the faster the rate of reaction.

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11y ago

The rate of a reaction is affected by surface area, concentration, and temperature.

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Q: Why does surface area of a reactant influence the rate of the of the reaction?
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Why does surface of a reactant influence the rate of the reaction?

A chemical reaction is nothing but the conversion of the reactant molecules into product molecules. By increasing the surface area of the reactants more number of reactant molecules are exposed which eventually increases the rate of the reaction...for example, powdered chalk piece dissolves faster in water than a piece of chalk.


Why does surface area of a reactant influence the rate of the reactions?

A chemical reaction is nothing but the conversion of the reactant molecules into product molecules. By increasing the surface area of the reactants more number of reactant molecules are exposed which eventually increases the rate of the reaction...for example, powdered chalk piece dissolves faster in water than a piece of chalk.


What is the effect of reactant surface area on the reaction rate?

surface area has simple constant factor with the rate of reaction. Rate = (surface area)[concentrations with coefficients] the greater the surface area the greater the rate of reaction in a simple constant multiple.


How is the rate of a reaction affected by reactant surface area?

That there is a bigger area of a solid exposed, so there is a greater chance of collisions causing a reaction.


How does increasing the surface area of a solid reactant affect the energy of molecular collisions?

Reactions depend on molecular collisions. If a solid reactant is a solid, grinding it into smaller particles will increase the surface area. The more surface area, the faster the molecular collisions, which in turn increases the rate of reaction.


Is this sentence true inceasing the surface area of a reactant exposes more of it to the reaction taking place?

true


How does surface area affect the rate of reaction?

The rate of a chemical reaction can be raised by increasing the surface area of a solid reactant. This is done by cutting the substance into small pieces, or by grinding it into a powder. If the surface area of a reactant is increased: More particles are exposed to the other reactant, there are more collisions, the rate of reaction increases.


Why does a reaction proceed faster when the reactants have greater surfaces area?

A greater the surface area will cause the reaction will proceed faster because there are more available sites where another reagent or catalyst can "attack" the reactant.


List five ways you could increase the rate of a chemical reaction?

1) Add a catalyst 2) Add heat 3) Stir 4) Mix 5) Surface area of the reactant


Why use reactant in the powdered form?

A lump of solid has a much lower surface area compared to a powdered catalyst. Since most chemical reactions that are catalysed by solid phase catalysts (heterogeneous catalysts) occur on the catalyst surface more surface area = faster reaction.


Why are catalysts spread out in a reaction?

Catalysts are chemicals that alter the rate of a chemical reaction without being chemically changed themselves . However to alter the rate of the reaction , the catalysts need to come in contact with the reactant particles. Spreading out the catalyst increases its surface area , hence increases the chances of coming in contact with the reactant particles . So they are able to provide the reactant particles an alternative route with a lower activation energy for the reactant particles to collide and form the product .


A factor that affects the rate of reaction?

There are several factors that affect the rate of reaction: -The surface area available. -Temperature -Availability of catalyst. -Concentration, if a/the reactant(s) is/are solutions. -Pressure, if a/the reactants(s) is/are gases. -Reactivity of reactants. -Activation energy of the reaction.