WorksheetsCatalysts
Total questions: 13
Worksheet time: 10mins
What is the rate of reaction?
How much energy is needed for a reaction to occur.
The energy required to break a bond.
The time it takes for a reaction to occur.
Collision Theory
What is collision theory?
Molecules must collide in the correct orientation with enough energy to bond.
Molecules need enough energy to collide and react.
Atoms constantly collide and react.
The minimum energy needed for atoms to react
How does a catalyst work in speeding up a reaction?
By lowering the activation energy or reaction
by giving them more energy
by making them more available
What is necessary for a chemical reaction to occur?
Correct orientation of particles when they collide
particle collisions
an increase or decrease in temperature
particle collisions with sufficient energy
a catalyst
Explain how increasing concentrations increases the rate of a reaction
Less collisions occur
More movement
More collisions occur
Less movement
How can you increase the surface area of a solid?
Divide the solid into smaller pieces
Get more solid
Turn it into a gas
Which change in condition only affects reactions involving gases?
Temperature
Surface area
Pressure
Concentration
What criteria must be met for reactant collisions to result in a successful product?
The reactants must collide with each other
The reactants must collide with enough energy and be in the right positions
The reactants must have enough energy to form the activated complex
List four factors that affects the rate of a reaction
temperature
concentration
surface area
volume
catalysts
