Calculate activation energies for the breakdown process

Assignment Help Chemistry

Reference no: EM131025102

The following is a quote from an article in the August 18, 1998, issue of The New York Times about the breakdown of cellulose and starch: "A drop of 18 degrees Fahrenheit [from 77 °F to 59 °F ] lowers the reaction rate six times; a 36-degree drop [from 77 °F to 41 °F ] produces a fortyfold decrease in the rate."

(a) Calculate activation energies for the breakdown process based on the two estimates of the effect of temperature on rate. Are the values consistent?

(b) Assuming the value of Ea calculated from the 36-degree drop and that the rate of breakdown is first order with a half-life at 25 °C of 2.7 years, calculate the half-life for breakdown at a temperature of -15 °C.

Reference no: EM131025102

Questions Cloud

A big city automobile quick oil change store : A big city automobile quick oil change store can process 20 vehicles per hour over its multiple bays. Each mechanic can change the oil and do other related tasks at a rate of one car every 20 minutes. If the center wanted a target labor utilization o..

Select a publicly traded company to research and evaluate : Select a publicly traded company to research and evaluate its Human Resource (HR) and business strategy, HR department job positions, and ways it markets its company regarding human capital. Some company Websites that provide this information are lis..

Discussion on ethics in marketing involves marketing : One of the most important topics covered in this week's discussion on ethics in marketing involves marketing activities geared toward children. Based upon this week's readings, identify what you believe is one of, if not the most, unethical marketing..

Write a research paper about international law : Write a research paper about international law (ASEAN free trade agreement and Asean economic community).

Calculate activation energies for the breakdown process : Assuming the value of Ea calculated from the 36-degree drop and that the rate of breakdown is first order with a half-life at 25 °C of 2.7 years, calculate the half-life for breakdown at a temperature of -15 °C.

Leadership stakeholder network : LEADERSHIP STAKEHOLDER NETWORK For this assignment, you need to identify the most important stakeholders (those vitally impacted and/or concerned with the success of your influence attempts) of your influence, or leadership attempts.

How do we write the equation of a horizontal line : How do we write the equation of a horizontal line? What would be an example?

What is the role of skills and competencies for todays : What is the role of skills and competencies for today's professional manager in making a positive difference to their career?

What is the level of labor used in production function : Explain whether you believe the Quantity theory of Money holds in the listed countries above: support your position with the statistics you created in the part (b) of this problem.

User Account

All Pages