Rate Equation/Orders Of Reaction
No description yet. This curated deck is ready for daily study.
Card preview (11)
Define rate equation
The change in concentration of a reactant or a product in a given time
Define order of reaction
The power to which the concentration of a reactant is raised in the rate reaction
Define rate constant
The constant that links the rate of reaction with the concentrations of the reactants raised to the powers of their orders in the rate equation
Describe the shape of a concentration time graph for a first order reactant
Straight line through the origin
Describe the shape of a concentration time graph for a second order reactant
Curve through the origin
Describe the shape of a concentration time graph for a zero order reactant
Straight line not through origin
Describe the shape of a concentration time graph for the square of a second order reactant
Straight line through the origin
Why when testing the effect of concentration of a reactant on rate of reaction must other reactants be in a large excess?
To ensure that the concentration of the other reactants does not affect rate of reaction
What is half-life?
The time taken for concentration of a reactant to fall to half its original value
What is true about the values for half life for 1st order reactants?
They are constant/they stay the same
Give the expression for k in terms of half life
k= ln2/half life