IMFs
IMF found between any type of molecules
What is a London force?
The relationship between reaction rate and concentrations
What is a rate law?
Catalysts act on a reaction by lowering this energy.
What is activation energy?
Rate at time zero of the reaction
What is the initial rate?
Time required for the concentration of a reactant to get to half of its initial value.
What is half-life?
IMF found between polar molecules
What is a dipole-dipole force?
In the equation: Rate=k[A]m [B]n k is ______ and m and n are called ___________
What are the rate constant and the orders with respect to A and B?
The name of the plot of ln k versus 1/T
What is the Arrhenius plot?
Rate over an interval of time
What is an average rate?
Define the shelf-life of a drug.
What is the time required for 10% of the drug to decompose?
IMFs between molecules of CO2
What are London forces?
If tripling the concentration of reactant A multiplies the rate by a factor of nine, the reaction is _______ order in A.
Second
This is the name of the original model of the substrate-enzyme binding.
What is the lock-and-key model?
Change in concentration of reactant or product per unit time
What is a reaction rate?
The rate constant for the decomposition of N2O5 at a particular temperature is 7.8x10-3 s-1. Calculate the half-life of this first order process.
89 s
The molecule with the highest boiling point: Methane (CH4), Dichloromethane (CH2Cl2) or Butanol (CH3CH2CH2CH2OH)
The rate law for a reaction is: Rate = k [A][B]2
If [B] is doubled, the reaction rate will increase by a factor of _________.
Four
The enzyme lysozyme causes the lysis of the bacterial cell walls by catalyzing the hydrolysis of this substrate.
What is a polysaccharide?
Rate at a single point in time
What is an instantaneous rate?
Rate = k[A]2, [A]0 = 0.200 M, k = 0.0214 M–1 sec–1
Calculate the half-life of this second-order reaction.
234 sec
The following molecules are NOT miscible with water: propanol (CH3CH2CH2OH), hexane (C6H14), benzene (C6H6), octanol (C8H17OH)
What are hexane, benzene and octanol?
N2(g)+O2(g)= 2 NO(g)
The concentration of nitrogen was 0.375 M at 50.0 s and 0.407 M at 65.7 s. Calculate the average rate of the reaction during this time period (units must be incuded in the answer)
1.0 x 10-3 M/s
The following pairs of rate constants and temperatures were measured for a reaction:
193 K and 34.0 M-1 s-1
198 K and 62.8 M-1 s-1
203 K and 112.8 M-1 s-1
208 K and 196.7 M-1 s-1
Calculate the activation energy(in kJ/mol) and the frequency factor.
39.1 kJ/mol and 1.27 x 1012
H2(g) + I2(g) → 2HI(g)
The rate of H2 consumption is 0.02 mol/L s. Calculate the rate of HI production (include units)
0.04 mol/L s
The initial concentration of reactant A in a first order reaction is 0.64 M and the half-life is 30 s. How many half-lives does it take to get down to 0.04 M of reactant A?
Four