Kinetics Flashcards
how to find the order of a molecule
the power in the rate equation
how to find the overall order of a reaction
the total of the powers in the rate reaction
how to find the units for k
units for rate as moldm-3s-1
have (moldm3) to the power of the overall order of the reaction
rearrange and simplify
what are the two ways of working out the rate equation
continuous monitoring
initial rate
equation for rate of reaction when there’s a range of time
change in concentration/change in time
equation for rate of reaction at a specific time
d concentration/d time
what is drawn to find d in the equation for rate
a tangent
what to do with all the tangents you draw at many intervals on original graph
draw a new graph using the gradient of each tangent against it’s concentration to find the affect of the concentration on rate of reaction
what order is a reactant with a relationship between the concentration and the rate is a flat graph
order 0
what order is a reactant with a relationship between the concentration and the rate is a linear graph
order 1
what order is a reactant with a relationship between the concentration and the rate is an exponential graph
order 2
as concentration doubles what does rate do if it is order 0
stays the same
as concentration doubles what does rate do if it is order 1
it doubles
as concentration doubles what does rate do if it is order 2
it quadruples
