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marusya05 [52]
1 year 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]1 year 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

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What happens if you were to swallow a small amount if wet nail polish? Answer truthfully in your own words.
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The three major types of faults are normal, reverse and syncline. true or false
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The three major types of faults are Normal, Reverse and Strike-slip faults. 


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Write the balanced chemical equation for the following reaction. Phases are optional. Solid calcium chlorate decomposes to form
Tanya [424]

Answer:

  • Ca(ClO₃)₂ (s) → CaCl₂ (s) + 3O₂ (g)

Explanation:

1)<u> Word equation (given)</u>

  • <em>calcium chlorate (solid) → solid calcium chloride (solid)  + oxygen (gas)</em>

2) <u>Chemical formulae of the reactant and products</u>:

  • <em><u>Calcium chlorate</u></em><em>: </em>

The most common oxidation states of chlorine are -1, +1, +3, +5, +7.

The suffix ate in chlorate means that chlorine atom is with the third lowest oxidation state (counting only the positive states). So, this is +5.

The oxidation state of calcium is +2.

Hence, the chemical formula of calcium chlorate is Ca(ClO₃)₂

  • <u><em>Calcium chloride</em></u>

The suffix ide in chloride means that chlorine is with oxidation state -1. Again the oxidation state of calcium is +2.

Hence, the chemical formula of calcium chloride is CaCl₂

  • <u><em>Oxygen</em></u>

Oxygen gas is a diatomic molecule, so its chemical formula is O₂.

  • <u><em>Phases</em></u>

The symbols s and g (in parenthesis) indicate the solid and gas phases respectively.

3) <u>Chemical equation</u>:

  • Ca(ClO₃)₂ (s) → CaCl₂ (s) + O₂ (g)

That equation is not balanced becasue the number of O atoms in the reactant side and in the product side are different.

4)<u> Balanced chemical equation:</u>

Add a 3 as coefficient in front of O₂(g), in the product side to balance:

  • Ca(ClO₃)₂ (s) → CaCl₂ (s) + 3O₂ (g)

Verify that all the atoms are balanced:

Atom    Reactant side      Product side

Ca             1                           1

Cl              2                          2

O              3×2 = 6                2×3 = 6

Conclusion: the equation is balanced and the final answer is:

  • Ca(ClO₃)₂ (s) → CaCl₂ (s) + 3O₂ (g)
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Answer:

A

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