1 surface area 2 concentration of reactant 3 presence of a catalyst 4 temperature
not sure about the last two...
One other one is:
pressure of gaseous reactants or products
Not sure though??
The six factors affecting the rate of a reaction
I hope it might help you.
concentration; catalyst and temperature
Increasing the pressure on a reaction involving reacting gases increases the rate of reaction. Changing the pressure on a reaction which involves solids or liquids has no effect on the rate of reaction.
The time it takes for a reaction to occur is a function of the reaction rate constant and the amount of reactants. However, how long it takes for a reaction of occur completely depends on the type of reaction it is -- what the order of the reaction is. A first or second order reaction reaction will occur much faster earlier on, but slows down significantly once the reactants are depleted. The rate of a zero order reaction is constants regardless of the concentration of the reactants.
The rate of a reaction is the time it takes for a reaction to take place. The rate of reactions can be affect by different factors such as the temperature, the air pressure, the concentration of each substance and whether a catalyst is used (a catalyst is something that lowers something's activation energy so the reactants have more energy to react). A reaction happens when atoms collide with each with a big enough force therefore a bigger surface area would help speed this up. Also the amount of energy the particle/atoms have helps. With these factors you can determine the speed at which a reation happens. Any questions?
Decrease the activation energy to speed up a chemical reaction.
The proper term for the phenomenon of reaction rates is known as chemical kinetics. Generally for any chemical reaction factors such as temperature, concentration, pressure, physical state, presence of a catalyst, and the reaction rate order. Reaction rate order is specific for each chemical reaction. So to sum it all up, if you influence the environment in a manner that does not change one of these listed variables, then it will not likely do anything to a reaction rate. But to be honest, I can't think of a single thing you could do to a reaction that wouldn't influence one or more of these parameters.
Catalyst will reduce the activation energy of the reaction, thereby the speed of the reaction (or the rate of the reaction) increases.
Speed up the rate of a chemical reaction
Increasing the pressure on a reaction involving reacting gases increases the rate of reaction. Changing the pressure on a reaction which involves solids or liquids has no effect on the rate of reaction.
A catalyst speeds up the rate of reaction, and lower the activation energy needed.
An enzyme is a catalyst that speeds up a chemical reaction. It functions by lowering the activation energy required for a reaction to occur, and by reducing the activation energy, the reaction speeds up.
Catalysts
The catalyst is a substance added to the reaction to speed it up. All in all, thecatalystlowers the reaction rate.
speed up the rate odf reacvtion
Three factors that speed up the rate of dissolution are increased temperature, increased surface area, and stirring the mixture.
The effect of temperature on the rate of diastase reaction is that it acts as a catalyst. Higher temperatures will speed up the reaction.
No a catalyst is unchanged by a chemical reaction, it does however serve to speed up the rate of the reaction.
The use of a catalyst increases the chance of particles meeting. This causes there to be a decrease in activation energy, and results in an increase in rate of reaction.