Rates Of Reaction Flashcards
What 4 things can affect the rate of reactions
Temperature
Surface area
Concentration
Catalyst
What is the equation for working out the rate of reaction?
Product formed divided by time
What is needed for a reaction to occur?
Particles must collide with another force
What is a catalyst and what happens to it during a reaction
A catalyst increases the rate of reaction by helping the collisions and making them more likely. THEY ARE NOT USED UP DURING THE REACTION
Why does surface area affect the rate of reaction?
The larger the surface area the more exposed particles there are to react
Give examples of biological and non biological catalysts
Enzymes are biological
Nickel and platinum are non biological
Why are catalysts important in industry?
Because only a small amount of catalyst is needed to increase the rate of reaction between large amounts which means:
More money
Quicker process
Better business
How can you increase the surface area?
By cutting the object into smaller pieces
