C8 Flashcards
How can you find out the rate of a chemical reaction
By monotoring the amount of products made over time
On a graph is the gradient is steep what does it mean
The reaction is fast
What most happen between particles before they can react
Must collide with a certain minimum amount of energy
What does activiation energy of a reaction mean
The minimum amount of energy that particles must have in order to react
What increases the frequncy of collision between reacting particles
When the surface area to volume ratio of ant solid reactants is increased
What speeds up reactions
Temp increase
Why does increasing the termperature increase the rate of reaction?
Because parricles collide more frequently and more energetically
What happens when you increase the concentration of reactants in solutions
It increases the frequncy of collision then leading to an increase in rate of reaction
What does a catalyst do to a react
Speed sup the reaction and remqins chemically unchaged
When would a catalyst be used
In inudstry to increase rates of reaction and reduce energy costs
In a revserible reaction one reaction is ______________ and the other is__________
Exothermic and endothermic
In any revserible reaction the amount of energy trasnfered to the surroundings is exactly equal to……
The enrgy transfered when the reaction goes in the opposite reaction
