What is the relationship between the rate constant and temperature for a reactio
Practice Questions
Q1
What is the relationship between the rate constant and temperature for a reaction according to the Arrhenius equation?
k = Ae^(-Ea/RT)
k = Ea/RT
k = RTe^(-Ea)
k = A + Ea/RT
Questions & Step-by-Step Solutions
What is the relationship between the rate constant and temperature for a reaction according to the Arrhenius equation?
Step 1: Understand that the rate constant (k) is a number that helps us know how fast a chemical reaction happens.
Step 2: Learn about the Arrhenius equation, which is a formula that shows the relationship between the rate constant (k), temperature (T), and activation energy (Ea).
Step 3: The Arrhenius equation is written as k = A * e^(-Ea/(R*T)).
Step 4: In this equation, A is called the pre-exponential factor, which is a constant for each reaction.
Step 5: The term e^(-Ea/(R*T)) shows how the rate constant (k) changes with temperature (T).
Step 6: As the temperature (T) increases, the value of e^(-Ea/(R*T)) increases, which means the rate constant (k) also increases.
Step 7: This means that higher temperatures generally lead to faster reactions because the rate constant (k) becomes larger.
