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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

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How many moles are 3.20 x102 formula units of calcium iodide?
DedPeter [7]

The number of moles in 3.20 x 10² formula units of calcium iodide is 0.053 moles.

<h3>How to calculate number of moles?</h3>

The number of moles in the formula units of a substance is calculated by dividing the formula unit by Avogadro's number.

According to this question, 3.20 x 10² formula units are in calcium iodide. The number of moles is as follows:

no of moles = 3.20 x 10²² ÷ 6.02 × 10²³

no of moles = 0.53 × 10-¹

no of moles = 0.053 moles

Therefore, the number of moles in 3.20 x 10² formula units of calcium iodide is 0.053 moles.

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3 0
2 years ago
Read 2 more answers
24. H2SO4 has
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Answer:

C.

Explanation:

para sakin letter C ganonn

3 0
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Which quantity is equivalent to the product of the absolute index of refraction of water and the speed of light in water?
givi [52]

The quantity which is equivalent to the product of the absolute index of refraction of water and the speed of light in water system is the speed of light in vacuum.

<h3>What is the speed of light?</h3>

Speed of light is the rate of speed though the light travels. To find the speed of light in any medium, the following formula is used.

v=\dfrac{c}{n}

Here, (n) is the index of reaction and (c) is the speed of light in the vacuum. The speed of light in the vacuum is almost equal to the 3.0×10⁸ m/s.

Now the quantity which is equivalent to the product of the absolute index of refraction of water and the speed of light in water has to be find out.

The above formula can be written as,

v=\dfrac{c}{n}\\vn=c\\c=vn

Here, the product of index of refraction and speed of light is equal to the speed of light in vacuum. This will be true for water as well.

Thus, the quantity which is equivalent to the product of the absolute index of refraction of water and the speed of light in water system is the speed of light in vacuum.

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3 0
1 year ago
Recall that the value of K is small for reactions that form very little product. Reactions that form very little product are sai
djverab [1.8K]

Answer:

Reversible reaction

Explanation:

8 0
2 years ago
What material could be used for a cup to keep coffee hot
nata0808 [166]

Answer:

Your answer could be: ceramic or stainless steel.

Explanation:

Glass, ceramic, and stainless steel are all good insulating materials for keeping coffee hot. Although, if you don't want to possibly burn yourself, don't use glass.

Have a great day/night! ^^

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