1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marusya05 [52]
2 years ago
8

At 25°C, what is the fraction of collisions with energy equal to or greater than an activation energy of 100. kJ/mol?

Chemistry
1 answer:
notsponge [240]2 years ago
5 0

Here we have to find out at 25°C, what is the fraction of collisions with energy equal to or greater than an activation energy of 100. kJ/mol.

Given:

Temperature = 25° C (273+ 25 = 298 K),

Activation energy (Ea) = 100 kJ/mol

From Arrhenius equation it has been found that the fraction of collisions with a specified energy is equal to the .

f =  - Ea / RT

⇒ f = 2.957 × 10⁻¹⁸

⇒ f = 2.96 × 10⁻¹⁸

Thus the fraction of collision is found to be  2.9610-18 is greater than activation energy.

To learn more about activation energy here

brainly.com/question/28297085

#SPJ4

You might be interested in
If a person eats a tomato, the person is a ...
nadezda [96]
Primary hope this helps
8 0
3 years ago
Read 2 more answers
Find the pHpH of a solution prepared from 1.0 LL of a 0.15 MM solution of Ba(OH)2Ba(OH)2 and excess Zn(OH)2(s)Zn(OH)2(s). The Ks
charle [14.2K]

Answer:

pH  = 13.09

Explanation:

Zn(OH)2 --> Zn+2 + 2OH-   Ksp = 3X10^-15

Zn+2 + 4OH-   --> Zn(OH)4-2   Kf = 2X10^15

K = Ksp X Kf

  = 3*2*10^-15 * 10^15

  = 6

Concentration of OH⁻ = 2[Ba(OH)₂] = 2 * 0.15 = 3 M

                Zn(OH)₂ + 2OH⁻(aq)  --> Zn(OH)₄²⁻(aq)

Initial:           0             0.3                      0

Change:                      -2x                     +x

Equilibrium:               0.3 - 2x                 x

K = Zn(OH)₄²⁻/[OH⁻]²

6 = x/(0.3 - 2x)²  

6 = x/(0.3 -2x)(0.3 -2x)

6(0.09 -1.2x + 4x²) = x

0.54 - 7.2x + 24x² = x

24x² - 8.2x + 0.54 = 0

Upon solving as quadratic equation, we obtain;

x = 0.089

Therefore,

Concentration of (OH⁻) = 0.3 - 2x

                                    = 0.3 -(2*0.089)

                                  = 0.122

pOH = -log[OH⁻]

         = -log 0.122

          = 0.91

pH = 14-0.91

     = 13.09

4 0
3 years ago
How do you think temperature will affect the rate of a chemical reaction?
Luba_88 [7]

Answer:

I could create a slower reaction because the particles might be moving slower due to the cold. if it was warm there will be a faster reaction. similar to the elements movements in solids and liquids.

8 0
3 years ago
How does experiments help scientist learn about the world
PSYCHO15rus [73]

Experiments test the scientists' ideas.

5 0
3 years ago
What is the moons role in causing tides ?
siniylev [52]

The gravitational pull generates this cool thing called tidal force, which kinda pushes the water to the side closest to the moon. When the tide is high, that means the moons closer to that point than somewhere else.

Two sides will always have high tide and two sides will always have low tide.

7 0
3 years ago
Read 2 more answers
Other questions:
  • How many moles are 1.20 x 1025 formula units of calcium iodide?
    10·1 answer
  • The force of gravity pulls all objects downwards." which of these statements is correct about the law of science?
    9·1 answer
  • Is a electron found in a subtonic particles in a atomic nucleus
    13·1 answer
  • When 2 grams of powdered lead (IV) oxide was added to 100 cm3 of hydrogen peroxide, water and oxygen were produced. Lead (IV) ox
    8·2 answers
  • How many moles are in 2.1 x 10^{24} molecules SiO4
    5·1 answer
  • If atoms are made up smaller parts such as electrons, why are atoms considered the basic unit of matter
    5·1 answer
  • If the temperature at the surface of the ocean increases, how does the carbon dioxide dissolved in the sea water change?
    7·1 answer
  • Why do ionic compounds conduct when dissolved and covalent compounds do not?
    5·1 answer
  • How many mL of ethanol would you
    15·2 answers
  • HELPPPP I NEED THE ANSWER i'M STUCK
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!