AP Biology

The respiration of plants is a biochemical reaction and should have a rate determined by the Arrhenius equation, k = Ae-EA/RT. Here, k is the rate, A is a constant, EA is the activation energy for the reaction, R is the gas constant, and T is the temperature in kelvins.


If the rate doubles for a 6 kelvin rise in temperature at around room temperature, what is the activation energy for the reaction?

R is about 8.31 J/K-mol. The value of e is 2.718, but you only have to know that ln(2) is about 0.693 and that you can rewrite the Arrhenius equation as ln(k) = -EA/RT. That means that the reaction rate doubles when the value of EA/RT changes by 0.693, or the value of EA/T changes by 0.693×8.31 J/K-mol = 5.76 J/K-mol.

  1. 0
  2. 0
  3. 17
asked by Anonymous
  1. 120

    1. 0
    2. 0
    posted by Anonymous

Respond to this Question

First Name

Your Response

Similar Questions

  1. Biology

    Need help with these two: 26. Why do plant cells contain both choroplasts and mitochondria? a. in the light, plants are photosynthetic autotrophs. In the dark, they are heterotrophs. b. if plants can't produce enough ATP to make

    asked by mysterychicken on January 24, 2010
  2. Biology

    Need help with these two: 26. Why do plant cells contain both choroplasts and mitochondria? a. in the light, plants are photosynthetic autotrophs. In the dark, they are heterotrophs. b. if plants can't produce enough ATP to make

    asked by mysterychicken on January 22, 2010
  3. Biology

    Need help with these two: 26. Why do plant cells contain both choroplasts and mitochondria? a. in the light, plants are photosynthetic autotrophs. In the dark, they are heterotrophs. b. if plants can't produce enough ATP to make

    asked by mysterychicken on January 23, 2010
  4. Biology

    Need help with these two: PLEASE help me; this is like the 4th time I'm posting this. 26. Why do plant cells contain both choroplasts and mitochondria? a. in the light, plants are photosynthetic autotrophs. In the dark, they are

    asked by mysterychicken on January 25, 2010
  5. science

    Plants perform photosynthesis and respiration. Dead plants are broken down and become part of the soil. Which of the following matter do plants help to cycle through ecosystems?

    asked by caleb on December 1, 2016
  6. science

    i need to answer these statements true or false:- ive answered some but stuck on others. 1)only animals respire - false 2)respiration uses oxygen 3)respiration uses up carbon dioxide 4)only green plants photosynthesise-true 5)all

    asked by olivia on October 6, 2009
  7. Biology

    If plants need oxygen for cellular respiration, then why do plants release oxygen into the atmosphere? More oxygen is produced during photosynthesis than the plant needs for cellular respiration, so the plant needs to release the

    asked by SkatingDJ on April 8, 2016
  8. chemistry

    The activation energy of a reaction is typically determined by calculating the rate constant for the reaction at two temperatures and then manipulating the Arrhenius equation. If you determine the reaction rate constants for a

    asked by danny on February 15, 2015
  9. science

    Which of the following is an example of heterogeneous catalysis? A. Ethylene and hydrogen gases are adsorbed onto the surface of a metal catalyst to accelerate the formation of ethane. B. An enzyme catalyzes a biochemical reaction

    asked by megan on August 18, 2016
  10. bio

    Does the rate of respiration change (i.e. the rate of expansion) when one puts more oil in a dough? Would respiration occur faster?

    asked by Jazz on June 16, 2010

More Similar Questions