The Reaction Kinetics MDCAT Quiz is a crucial tool for mastering the principles of chemical reactions and their rates, a key topic in MDCAT chemistry. It delves into how and why reactions occur at different speeds, focusing on factors like temperature, concentration, and the presence of catalysts. This quiz is designed to help students gain a strong grasp of reaction mechanisms and rate laws, ensuring a solid foundation for exam success.
Benefits of the Reaction Kinetics MDCAT Quiz
The MDCAT Quiz on reaction kinetics provides targeted practice on high-priority areas such as activation energy, rate-determining steps, and methods to calculate reaction rates. It simulates real exam questions, preparing students for the complexity and format of MDCAT problems. By attempting this quiz, you can identify weak areas, improve problem-solving speed, and understand the practical applications of kinetics in both laboratory and real-world contexts, such as drug action and industrial processes.
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Free Flashcards for Reaction Kinetics
To complement the MDCAT Quiz, free flashcards are available to aid in quick revisions. These flashcards summarize essential concepts, including formulas for rate constants, examples of first-order and second-order reactions, and collision theory fundamentals. Designed for quick memorization and review, they are an excellent resource for reinforcing knowledge, especially during the final stages of MDCAT preparation.
The study of the speed of chemical reactions is known as __________.
Reaction kinetics
The rate of a chemical reaction is defined as the change in __________ per unit time.
concentration
The unit of reaction rate is __________.
mol/L/s
The rate of a reaction is directly proportional to the __________ of the reactants.
concentration
A reaction that occurs in a single step is called a __________ reaction.
elementary
The sum of powers of the concentration terms in the rate law is called the __________.
order of reaction
The rate law for a reaction is determined by __________.
experiment
The slope of a concentration vs. time graph for a zero-order reaction is equal to the __________.
rate constant
For a first-order reaction, the half-life is __________ of the initial concentration.
independent
The rate constant has units of __________ for a second-order reaction.
L/mol/s
The Arrhenius equation relates the rate constant to __________.
temperature
The activation energy of a reaction is the minimum __________ required for the reaction to occur.
energy
A catalyst increases the reaction rate by __________.
lowering activation energy
The slowest step in a reaction mechanism is called the __________ step.
rate-determining
The units of the rate constant for a zero-order reaction are __________.
mol/L/s
The integrated rate law for a first-order reaction is __________.
ln[A] = -kt + ln[A]₀
The rate of a reaction increases with an increase in __________.
temperature
A reaction with a rate law rate = k[A][B] is __________ order overall.
second
For a second-order reaction, a plot of __________ vs. time is linear.
1/[A]
The time required for half of a reactant to be consumed is called __________.
half-life
A mechanism is a sequence of __________ that describes the pathway of a reaction.
elementary steps
The rate constant increases with temperature according to the __________ equation.
Arrhenius
A reaction where products can recombine to form reactants is called a __________ reaction.
reversible
In a first-order reaction, the concentration of reactant decreases __________ over time.
exponentially
The study of reaction mechanisms helps identify __________ in a reaction.
intermediates
The order of a reaction is determined from the __________.
rate law
A catalyst is not consumed in the reaction but provides an alternative __________.
pathway
The molecularity of a reaction refers to the number of __________ in a single step.
molecules
The units of the rate constant depend on the __________.
order of the reaction
The half-life of a second-order reaction is __________ proportional to the initial concentration.
inversely
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