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What is the relationship between the rate constant and temperature for a reactio

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Question: What is the relationship between the rate constant and temperature for a reaction according to the Arrhenius equation?

Options:

  1. k = Ae^(-Ea/RT)
  2. k = Ea/RT
  3. k = RTe^(-Ea)
  4. k = A + Ea/RT

Correct Answer: k = Ae^(-Ea/RT)

Solution: 

The Arrhenius equation states that the rate constant k is related to temperature T and activation energy Ea by k = Ae^(-Ea/RT), where A is the pre-exponential factor.

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?
  1. k = Ae^(-Ea/RT)
  2. k = Ea/RT
  3. k = RTe^(-Ea)
  4. 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.
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