What effect does heat have on the rate of a chemical reaction?
It depends on whether the reaction is exothermic or endothermic. If heat is added to an exothermic reaction, the reaction will slow down. Heat has the opposite effect on an endothermic reaction.
Generally increasing the temperature the reaction rate of a chemical reaction is increased.
The addition of heat stimulates the molecules in the reaction. Because they will move faster, the reaction will speed up.
a catalyst has no effect in chemical reaction. it only increases or decreases the rate of the chemical reaction.
Describe how you could investigate the effect of concentration on reaction rate using this chemical reaction?
Investigating the Effect of Concentration on the Rate of a Reaction:
A catalyst speeds up the rate of a chemical reaction.
The rate of a chemical reaction increase with the concentration of reactants.
What is the effect on the rate of a chemical reaction when the concnetration of a reactant is decreased?
When the concentration of the reactant is decreased, the rate of chemical reaction go slow.
catalyst decreases the activation energy of a chemical reaction, thereby increasing the rate of the chemical reaction
How do temperature concentration and surface area *effect* the rate of a chemical reaction? Increased any or all will increase reaction rate.
Normally the application of heat will increase the speed/rate of a chemical reaction. As a general rule a 10 degrees centigrade increase in temperature will double the rate of a chemical reaction.
yes.. No. That's no. Heat controls the rate of reaction, but a catalyst is defined as a *chemical agent* (element/ compound) that alters the rate of reaction.
A catalyst alters the rate of a chemical reaction.
To Cause a Chemical reaction. A properly chosen, specific catalyst is able to speed up the rate of a particular chemical reaction.
Heat accelerates the rate at which molecules move, thus increasing the rate at which the molecules will collide and perform chemical reactions.
Generally the reaction rate is higher at high temperature.
A properly chosen, specific catalyst is able to speed up the rate of a particular chemical reaction
Catalysts or heat will also do this.
The effect of a catalyst on a chemical reaction is to increase the rate of reaction without itself being used up. It does this by decreasing the activation energy of the reaction by providing an alternate pathway.
Heat will increase the rate of any chemical reaction. This is because a chemical reaction require three things: The molecules to collide, collide with enough energy, and collide in the correct orientation. With increased heat you increase the number of collision and the energy with which molecules collide. For non-organic enzymatic reactions(ex platinum catalyzes several hydrogen reaction) heat will speed up the reaction. For organic reactions heat will only increase the rate up to a… Read More
The rate of a chemical reaction depends on: temperature, pressure, concentration of reactants, physical form of reactants, catalysts, stirring, nature and order of the reaction, solvent, effect of irradiation, etc.
Enhanching observed chemical reaction rate at a particular temperature.
None. A catalyst affects only the rate of reaction, and if the reaction is already at equilibrium, the net rate of the reaction is zero and remains so after a catalyst is added.
This depends on the chemical reaction taking place. Decreasing surface area of the reactants will slow a reaction. Depending on how concentrated the reactants are the reaction will also be changed. (low concentration of reactants slower rate of reaction). Altering the temperature (usually by lowering the temperature - but not always) will alter the rate of the chemical reaction. Agitation (shaking or stirring or the reactants) typically increases the rate of the chemical reaction. The… Read More
it depends on what chemicals used
A geat surface area improve the reaction rate; the contact between the reactants is easier.
An enzyme alters the rate of a chemical reaction by lowering the activation energy This increases the rate of the chemical reaction.
In a basic form sun light produces heat, heat act's as a catalyst which speed's up chemical reaction. SO in a nut shell sunlight makes the dissolving process occur more rapidly.
Which will speed up a chemical reaction A Apply heat B Increase the concentration of the reactants C Grind up the substance so there is more surface area?
The 2 ways to increase chemical reaction rate are applying heat or a catalyst. So it is A : Applying heat. ;)
Inhibitors, generally, tend to increase the activation energy, thereby decreasing the rate of the reaction.
enzymes are biological catalysts that speed up the rate of reaction without being changed or used up
add salt, add water heat
catalyst decreases the activation energy of a chemical reaction, thereby increasing the effective collisions and hence the rate of the chemical reaction
The chemical equation is the word expression of a chemical reaction. The rate of reaction give information about the speed of this reaction.
Heat energy is necessary for some chemical reactions to occur. Some chemical reactions are endothermic meaning they require or absorb energy for a chemical reaction to occur. Other chemical reaction are exothermic meaning they release energy when the chemical reaction takes place..
The rate of a chemical reaction is the speed at which it occurs and goes to completion.
A chemical reaction reaches equilibrium when the rate of forward reaction becomes equal to the rate of backward reaction.
An enzyme is a protein that changes a rate of a chemical reaction
The chemical reaction rate is the speed at which reactants are transformed in products.
No, an increase in temperature will speed up the reaction. This is because the heat energy is transferred into kinetic energy (movement energy) in the reactors and this increases their speed and so increases the rate at which they collide with each other, increasing the rate of the chemical reaction.
Yes, the rate of a chemical reaction is dependent of temperature - frequently increasing the temperature we can increase the rate of reaction and the yield.
A material that is used to decrease the rate of a chemical reaction is an inhibitor. It cans also prevent a chemical reaction.
Yes, enzymes alter the rate of a chemical reaction (specifically, they speed the reaction up).
Catalysts are substances that increase the rate of a chemical reaction -APEX
For chemical equilibrium Rate of forward reaction + Rate of reverse reaction = zero
The reaction rate measure the speed or slowness of a chemical reaction.
A catalyst improve the rate of a chemical reaction.
Yes, indeed. Epoxy resin cures by chemical reaction. Any chemical reaction is speeded up when you heat it, but when you cool it in the fridge, the reaction slows way down!
In general, a material that decreases the rate of a chemical reaction is called an inhibitor.
A substance that accelerates the rate of a chemical reaction is called a catalyst.
The rate constant of a chemical reaction increase with the temperature.