If a temperature increase from 12.0 ∘c to 22.0 ∘c doubles the rate constant for a reaction, what is the value of the activation barrier for the reaction?
Solved
Show answers
More tips
- S Society and Politics Secrets of NATO: Which Countries are Part of the Alliance?...
- H Health and Medicine Is Massage Necessary? Facts and Opinions...
- C Computers and Internet Clearing Cache: How to Speed Up Your Browser...
- S Style and Beauty How are artificial nails removed?...
- S Style and Beauty Secrets of Tying a Pareo: 5 Ways...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Chemistry
- C Chemistry Zn + HNO₃ Na + HNO3 K + HNO3 Ca HNO3 Fet HNO₃...
- C Chemistry A gas occupies 900.0mL at a temperature of 20.0C what is the volume at 130.0C...
- C Chemistry Can y’all help me...........
- C Chemistry Why are salt solutions not used to treat the roads during snow events when the temperature is below -15 degrees Celsius? * A. Salts are nonelectrolytes and do not demonstrate...
- C Chemistry How do resonance structures and isomers differ?...
- C Chemistry An element, Y, has seven valence electrons. It bonds ionically, in a one-to-one ratio, with another element, X. State the possible identities of X and Y and their characteristic...
- H History Which of these was a significant reason for the reawakening of the American women s rights movement in the post-World War II era?...
- M Mathematics Which of the following practices is more likely to occur before the scientific revolution than after? A. Scientist followed an established method of systematic inquiry. B....
- F French Someone please help me in this!!...
- M Mathematics Find the area of the figure below pls me needs help...
Ответ:
48,501 J/mol
Explanation:
1) Action barrier = activation energy = Ea
2) Data:
i) T₁ = 12°C = 12 + 273.15 K = 285.15K
ii) T₂ = 22°C = 22 + 273.15 K = 295.15 K
iii) rate constant = k: k₂ / k₁ = 2
iv) Ea = ?
3) Formula:
Arrhenius' law gives the relationship between the constant of reaction and the temperature:
4) Solution
By arranging the formula, you get:
㏑[k₂/k₁] =Ea/R [1/T₁ - 1/T₂]
Replace k₂ = 2k₁; T₁ = 285.15; and T₂ = 295.15
ln[2] = Ea/8.314 J/K mol × [1/285.15 - 1/295.15]K
Ea = ln [2] × 8.314 J/K mol / [1.18818×10⁻⁴K] = 48,501 J/mol
Ответ:
Organisms in one ecosystem are all dependent on each other: they feed on each other or are dependent on the tissues of the other organisms when they die - this is called "interdependence" - dependence from each other.
So the answer is interdependent.