Calculating Activation Energy on Excel (from Arrhenius Equation)

Calculating Activation Energy on Excel (from Arrhenius Equation)

Assessment

Interactive Video

Science, Chemistry, Physics

University

Hard

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The video tutorial explains the relationship between temperature and the rate constant of a reaction, using the Arrhenius equation. It demonstrates how to calculate activation energy and the Arrhenius factor by graphing the natural log of the rate constant against the inverse of temperature. The tutorial includes practical steps for plotting data in Excel, analyzing the trend line, and interpreting the slope and y-intercept to derive key reaction parameters.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What happens to the rate constant of a reaction as the temperature increases?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the relationship between the activation energy and the rate constant in the context of the Arrhenius equation.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

How can the natural logarithm of the rate constant be used to determine the activation energy?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of the slope in the graph of natural log of K versus 1/T?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What values are needed to plot the graph for the Arrhenius equation?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you interpret the y-intercept of the graph in relation to the Arrhenius factor?

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the process of calculating the Arrhenius factor from the natural log of the rate constant.

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