Increasing the temperature the reaction rate increase.
A catalyst speeds up the reaction and lowers the amount of heat needed.
it depends on what chemicals used
Heat can change the rate of reaction
Increasing the concentration of the reactants increases the rate of the reaction.
Yes.why
if gases are involved in the reaction.
Increases reaction rate.
The enthalphy of a reaction does not influence the rate of reaction, it may however influence the rate of the reverse reaction, as we now would have a change in potential energy (for example an exothermic reaction requires more energy to go in the reverse then does an endothermic). This is why you can consider some products thermodynamically favourable - as they are the exothermic product which would require more energy to turn back towards reactants then to stay as products. Overall rate is not seen in the various rate law or rate of reaction equations utilised such as arrhenius temperature dependance or the rate law equation. Rate is indepedant of enthalpy WRT to forward reaction.
Surface area affect the reaction rate because the contact between finely divided particles is improved.
if the reaction is exothermic (creates heat) then adding heat will cause the reaction to run in the reverse direction if the reaction is endothermic (requires heat) then heat will speed it up
The rate increases
The more collisions the faster the rate.