The general form of the Rate Law is: Rate = k[A]^m[B]^n, where k is the rate constant
What is the rate law for a reaction that is first-order with respect to A and second-order with respect to B?
Rate = k[A][B]^2
What is the symbol for the rate constant in the Rate Law?
k
What is the rate law expression for a first-order reaction with respect to reactant A?
Rate = k[A]
The rate constant in the Rate Law is temperature-dependent.
True
The Theoretical Rate Law is derived using collision theory and activation energy
The reaction orders in an Empirical Rate Law are determined by experiments.
True
Reactant concentrations are a key factor in both the Empirical and Theoretical Rate Laws
What equation is the rate constant (k) related to for determining activation energy and temperature dependence?
Arrhenius Equation
Match the reaction order with its rate dependence:
Zero-order ↔️ Independent of concentration
First-order ↔️ Directly proportional to concentration
Second-order ↔️ Proportional to square of concentration
What does the Rate Law relate in a chemical reaction?
Rate to reactant concentrations
Match the Rate Law component with its description:
Rate ↔️ Speed of the chemical reaction
k (Rate Constant) ↔️ Value dependent on temperature
[A] and [B] ↔️ Concentrations of reactants
m and n ↔️ Reaction orders with respect to A and B
Reactants are listed on the right side of a chemical reaction equation.
False
In a zero-order reaction, the rate is constant and unaffected by reactant concentrations.
True
An empirical rate law might be determined experimentally as Rate = k[A][B]^2, whereas a theoretical prediction based on the mechanism could be Rate = k[A][B], which highlights the difference between observation and prediction
What happens to the reaction rate if the concentration of a reactant in a first-order reaction is doubled?
Doubles
The Empirical Rate Law is expressed as Rate = k[A]^m[B]^n, where k is the rate
The Theoretical Rate Law uses collision theory and activation energy to predict the rate
The rate constant (k) measures the reaction rate when all reactants are at 1 molar concentration.
True
If Rate = k[A]^2[B], doubling [A] quadruples the reaction rate.
True
The rate constant (k) in the Rate Law is temperature-dependent.
True
Coefficients in a chemical reaction indicate the number of moles
Reaction Order indicates how a reactant's concentration affects the reaction rate
Match the type of rate law with its feature:
Empirical Rate Law ↔️ Determined through experiments
Theoretical Rate Law ↔️ Derived from reaction mechanism
Order the reaction orders from slowest to fastest rate dependence:
1️⃣ Zero-order
2️⃣ First-order
3️⃣ Second-order
What does the Empirical Rate Law relate the reaction rate to?
Reactant concentrations
How is the Theoretical Rate Law derived?
Reaction mechanism
Order the steps to interpret Empirical Data and construct a Rate Law:
1️⃣ Collect rate data by varying reactant concentrations
2️⃣ Determine reaction orders from the data
3️⃣ Construct the rate law expression
Reactant concentrations affect the rate
What is the rate law for a reaction where doubling [A] doubles the rate and doubling [B] quadruples the rate?