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How does increased surface area of a reactant in a chemical reaction leads to faster reaction?
Wiki User
∙ 14y ago
The more finely divided the solid is, the faster the reaction happens. A powdered solid will normally produce a faster reaction than if the same mass is present as a single lump. The powdered solid has a greater surface area than the single lump.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoI think increasing temperature can let molecules have more energy to complete a reaction.Increasing concentration can let molecules have more chances to collide, which is necessary for a reaction. And increasing surface area is like increasing concentration--to get more chances to meet together.
Wiki User
∙ 12y agoThis change exposes more reactant particles to a possible collision
Wiki User
∙ 13y agoIt increases the rate of reaction because more particles or molecules of the substance are being made to react in a shorter time.
Wiki User
∙ 14y agoThe decrease in particles size increases the surface area of reactants, because the contact between reactants becomes increased and hence rate of reaction also becomes increased.
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What do concentration surface area and temperature have in common?
They can all affect the rate of a chemical 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.
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 .
What physical factors control the rate of chemical reactions?
Surface area of the reactant.
How do catalysts alter a reaction?
Catalysts does not alter the reaction at all but only speeds up the reaction. In an equilibrium reaction it speeds up the rate of reaction in both direction, forward and backward reactions. It actually absorbs the reactant particles into its surface and weakens their bonds. Reaction proceeds when the activation energy is overcomed. In the reactant side, particles collide with each other with high speed.
Why does surface area of a reactant influence the rate of the of the reaction?
by pooing on the leg
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 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.
What do concentration surface area and temperature have in common?
They can all affect the rate of a chemical reaction.
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.
How might the chewing of food be related to the rate of chemical reaction digestion that occurs in your body?
Chemical reaction rate is increased by: -increased surface area -increased temperature -increased concentration of reactants -presence of a catalyst Chewing food essentially breaks up large chunks of food into smaller bits, increased total surface area for digestion.
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.
What affects the rate of a reaction?
The rate of a reaction increases if: · The temperature is increased · The concentration of a dissolved reactant is increased · The pressure of a reacting gas is increased · Solid reactants are broken into smaller pieces · A catalyst is used
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 .
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
What physical factors control the rate of chemical reactions?
Surface area of the reactant.
Will a smaller surface speed up a chemical reaction?
No. A smaller surface area will slow down a chemical reaction.
