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Increased surface area for reaction to occur on
What else can I help you with?
What apparatus is used for founding or grinding solid substance into powder?
A mortar and pestle is commonly used for grinding solid substances into powder. The mortar is a bowl and the pestle is a heavy stick used to crush and grind the ingredients.
List five ways you could increase the rate of a chemical reaction?
Increase the temperature to provide more kinetic energy for the reactant molecules to collide. Increase the concentration of reactants to increase the frequency of collisions. Use a catalyst to lower the activation energy barrier for the reaction. Increase the surface area of solid reactants by grinding them into smaller particles. Increase the pressure for reactions involving gaseous reactants to reduce the volume and increase collisions.
Is powdery a physical or chemical change?
Powdery is an adjective which not require any change!You can have a physical change where a large lump of some substance is ground into powder. Or you can have a chemical change (eg magnesium burning) which leaves a powdery residue.
Why is it necessary to grind the sample in the recrystallization process?
Grinding the sample in the recrystallization process will allow for maximum exposure of particles in the original crystal. This will allow a more complete reaction and reformation of crystals that are more pure and stronger than before.
How is the melting of an ice cube similar to the grinding of chalk into a powder?
I'm not so sure there is a similarity. When ice melts it undergoes a phase change. The solid H2O becomes liquid H2O and energy is absorbed in the form of heat. Ice can also become a liquid at 0° C, its melting point, or colder when the pressure is significantly reduced. When chalk, typically calcium carbonate (CaCO3), is ground into powder it does not undergo any phase change. It is still solid calcium carbonate. The grinding action will release energy in the form of heat by the cause of friction. So, ice melting is a phase change that is endothermic, meaning it absorbs heat. The grinding chalk is not a phase change and is exothermic, meaning it releases heat.
How do you increase the rate of a reaction of a solid?
To increase the rate of a reaction involving a solid, you can try increasing the surface area of the solid by breaking it into smaller pieces or grinding it into a powder, which exposes more surface area for the reaction to occur. Another way is to increase the temperature, as higher temperatures generally lead to faster reaction rates. Additionally, using a catalyst can also help to speed up the reaction.
Why can grinding a solid into a fine powder increase the rate of reaction?
Grinding a solid into a fine powder increases the rate of reaction by increasing its surface area. A larger surface area allows more collisions between reactant particles, which enhances the likelihood of successful interactions and reactions. Additionally, the smaller particle size can improve the dispersion of the solid in a mixture, further facilitating contact with other reactants. This leads to a faster overall reaction rate.
What does grinding solid reactants into powder - do to the reactant particles?
The powdered form of a solid reactant has an aggregate surface area that is many times greater than the solid blockfrom which it came. This makes any reaction proceed faster and more efficiently, usually resulting in enhanced yield as well.
What apparatus is used for founding or grinding solid substance into powder?
A mortar and pestle is commonly used for grinding solid substances into powder. The mortar is a bowl and the pestle is a heavy stick used to crush and grind the ingredients.
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.
Five physical change?
1) melting from solid to liquid; 2) evaporationfrom liquid to vapour;3) sublimation direct from solid to vapour; 4) grinding to make a solid into a powder; 5) dissolving a solid in a solute; 6) freezing from a liquid to a solid.
List five ways you could increase the rate of a chemical reaction?
Increase the temperature to provide more kinetic energy for the reactant molecules to collide. Increase the concentration of reactants to increase the frequency of collisions. Use a catalyst to lower the activation energy barrier for the reaction. Increase the surface area of solid reactants by grinding them into smaller particles. Increase the pressure for reactions involving gaseous reactants to reduce the volume and increase collisions.
What is the method of production of powder?
Powder is typically produced by grinding or pulverizing solid materials into fine particles. This can be done through various methods such as milling, crushing, or atomization. The choice of production method depends on the desired particle size, properties of the material, and the intended application of the powder.
Is powdery a physical or chemical change?
Powdery is an adjective which not require any change!You can have a physical change where a large lump of some substance is ground into powder. Or you can have a chemical change (eg magnesium burning) which leaves a powdery residue.
Which factors will increase the solubility of most solid solutes?
strong attraction of solute particles to solvent particles
Zinc powder and solid iodine are mixed together. A small amount of water is added to help the reaction proceed faster?
True.
Why is it necessary to grind the sample in the recrystallization process?
Grinding the sample in the recrystallization process will allow for maximum exposure of particles in the original crystal. This will allow a more complete reaction and reformation of crystals that are more pure and stronger than before.
