RP7 - Measuring the Rate of Reaction by an Initial Rate Method and Continuous Monitoring Method Flashcards
1
Q
How can initial rate be calculated
A
Drawing a tangent at time = 0 on a conc vs time graph and calculating the gradient of the tangent at time = 0
2
Q
How to calculate order of a reactant graphically
A
Draw the graph of log rate = logk + nlog[Y]
This will product a straight line
The gradient of the graph is equal to the order, n.
3
Q
Why do we measure rate at the start of the reaction
A
The concentrations are known at the start of the reaction
4
Q
In a reaction with several reactants, if the concentration of one of the reactants is kept in large excess how does it affect the rate
A
It will not affect the rate and will be 0 order.
The concentration stays constant
