   Chapter 12, Problem 4ALQ

Chapter
Section
Textbook Problem

# How does temperature affect k, the rate constant? Explain.

Interpretation Introduction

Interpretation: The effect of temperature on the rate constant is to be explained.

Concept introduction: The relationship between the rate constant and temperature is given by the Arrhenius equation, k=AeEaRT .

To determine: An explanation regarding the effect of temperature on the value of the rate constant.

Explanation

An increase in the temperature of a system increases the number of collisions between the particles that leads to more amount of collisions being successful. Hence, the rate of a reaction increases. This is explained on the basis of the Arrhenius equation.

The relationship between the rate constant and temperature is given by the Arrhenius equation. The Arrhenius equation is,

k=AeEaRT

Where,

• k is the rate constant.
• A is the Arrhenius parameter.
• Ea is the activation energy.
• R is the universal gas constant.
• T is the absolute temperature

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