Module 5: Rates, Equilibrium And PH
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Rate of reaction What 4 ways can you measure rate of reaction
Gas collection Mass loss Disappearing cross Colorimeter
Rate of reaction Two ways to measure gas collection
Over water Gas syringe
Rate of reaction Negative of sometimes using gas collection over water
Some gases can dissolve in water
Rate of reaction What is used to measure rate in mass loss
Mass balance and loss of mass recorded
Rate of reaction How is disappearing cross done for measuring rate
As solid forms increasing turbidity and can’t see cross
Rate of reaction How is colorimeter used to measure rate
Measures changes in colour through amount of light absorbed
Orders of reaction What are orders used for
Finding which reactant impacts rate the most
Orders of reaction How are orders found
Change conc of each reactant independently
Orders of reaction What may happen as you increase concentration of any one reactant
May increase rate May have no effect
Orders of reaction What is rate always proportional to
Change in concentration of a particular reactant
Orders of reaction Symbols for proportionality
Rate § [reactant]^x
Orders of reaction What are the most common orders
Zero order, first order, second order
Orders of reaction What is the power when zero order
0
Orders of reaction What does a zero order with respect to the reactant mean
Concentration of a reactant has no effect on the rate
Orders of reaction Why does zero order mean not influences rate
Any thing to power of 0 = 1
Orders of reaction What is the power (x) in first order
1
Orders of reaction What is first order with respect to the reactant
When rate depends on conc raised to power of 1 (Directly proportional )
Orders of reaction In first order if conc of a is doubled whayt happens to rate
Rate increases by a factor of 2^1 = 2
Orders of reaction What is power (x) in second order
2
Orders of reaction What’s second order
When rate depend on it’s reaction raised to the power of two
Orders of reaction In a second order reaction what happens if the conc of a is doubles
Reaction rate increases by factors of 2^2 = 4
Orders of reaction Proportional symbols for zero order
Rate § [A]^0
Orders of reaction Proportional symbols for first order
Rate § [A]^1
Orders of reaction Proportional symbols for second order
Rate § [A] ^2