Order in the Court
What order is a reaction if the slope of the graph slopes downward at a negative bend, and upward straight up like this ( / )
What is 1st order
Half-life is what...
What is the time it takes for one-half of the limiting reagent to be consumed
What is the slowest step in a reaction
Reactants successfully collide to imitate bond-breaking and bond-making events producing products, is what reaction?
What is an elementary reaction.
What is the equation for 1st order reactions?
What is ln[A] = -kt + ln[A]o
What does a catalyst do to the reaction rate of reactions?
What is lowers activation energy barrier allowing the reaction to start faster than without the catalyst.
The equation for determining half-life of a reaction is what.
What is t1/2 = 0.693/k
A substance that is both created and consumed during a chemical reaction that does not appear in the overall balanced reaction.
What is an intermediate
What is collide, have proper orientation, and have sufficient energy.
What order is a reaction if the concentration time graph is a line like this ( \ ) and the rate concentration graph is like this (---)
When the concentrations of both reactants A and B are doubleted the rate increased by a factor of 8, The reaction is second order in B, how about in A?
What is first order
The half-life equation of a second order reaction is
What is t1/2 = 1/ K[A]o
The number of elementary steps determines what...
The number of minima between reactants and products.
An increase in temperature of 5-10 degrees Celsius can substantially increase the rate of a chemical reaction, what explains this?
What is the number of effective collisions between reactant particles is increased
What is the formula for second order reactions?
What is 1/[A]t = kt + 1/[A]o
Under what circumstances should you not use the method of initial rates to determine the rate law for a reaction?
The concentration of A reduces from 1.0 M to 0.50 M in 25.2 minutes. If A decomposes by a 1st order reaction, what is the half-life of the decomposition of A
What is 25.5 minutes.
The purpose for striking a match against the rough side of a match box is to what
What is to supply the activation energy for the reaction.
What makes a reaction exothermic?
What is the potential energy of the products is less than the reactants.
The reaction of chlorien dioxide and hydroxide ion is shown below. Determine the overall reaction order for this reaction from the rate law.
2ClO(aq) + 2OH-(aq) <--> ClO3-(aq) + ClO2-(aq) + H2O(l)
Rate Law: R=k[ClO2]^2[OH-]
Overall order = sum order reactants
Overall order = 2 + 1
What is 3rd order
What is the transition state
If the half-life of a first order reaction is 10 s, how long does it take to decrease the initial concentration of a reactant by 94%
What is 40.6 seconds
Which of the following rate laws would be consistent with the reaction mechanism?
a) Rate = k[NO2][Cl2] c) Rate = [NO2][Cl]
b) Rate = k[NO2]^2 d) Rate = [NO][Cl][NOCl2]
What is a) Rate = k[NO2][Cl2]
If Ep < Er, then what reaction occurs?