5.1.1- How Fast? Flashcards
What does the rate of a reaction show?
How fast reactants are converted into products
What does the rate of a reaction show?
How fast reactants are converted into products
How do you work out rate constant?
k= ln2/ half life
What is the formula for the rate equation?
rate= k[A]^m [B]^n
What does zero order mean?
Concentration of this species has no impact on rate
What does the rate concentration graph for zero order look like?
A horizontal straight line
What does first order mean?
The concentration of the species and the rate are directly proportional
What does the rate concentration graph look like for first order?
A straight diagonal line from the origin
What does second order mean?
The rate is proportional to the concentration of the species squared
What does the rate concentration graph for second order look like?
A curved line from origin
How do you work out the rate from a concentration time graph?
Find the gradient
What does the concentration time graph look like for zero order?
Straight downward sloping diagonal line
What does the concentration time graph look like for first order?
A curved downward sloping line
What does a concentration time graph look like for second order?
A curved downward sloping line with a kink in the middle
What is half life?
The time taken for the initial concentration of the reactants to decrease by half
