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emmainna [20.7K]
3 years ago
7

It was field day at school. The sun was bright and the temperature high. Most of the students wore light colored T-shirts to sta

y cool because dark colors ____________ most wavelengths found in white light.
Chemistry
2 answers:
lesya [120]3 years ago
8 0

Answer:

Absorbs.

Explanation:

Hello,

In this case, we consider that sunlight makes up of a mix of all visible wavelengths of electromagnetic spectrum. It has been substantiated that when all visible wavelengths get into the eye at once, the color white is perceived. However, the absence of any light is related with the black color.

In such a way, black it is said to absorb the radiation while white reflects it, therefore, when the sun is shining, providing high temperatures, it is recommended to wear light colored T-shirts.

Therefore, the answer is:

"It was field day at school. The sun was bright and the temperature high. Most of the students wore light colored T-shirts to stay cool because dark colors absorbs most wavelengths found in white light."

Best regards.

belka [17]3 years ago
5 0
It was field day at school. The sun was bright and the temperature high. Most of the students wore light colored T-shirts to stay cool because dark colors absorb most wavelengths found in white light.
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What is the boiling point of a solution made by dissolving 1.0000 mole of sucrose in 1.0000 kg of water?

The change in Boiling Point of water can be calculated using this formula:

ΔTb = i * Kb * m

Where i is the van't hoff factor (the number of particles or ions), the kb is a constant (boiling point elevation constant) and m is the molality of the solution.

The kb for water is always 0.515 °C/m. Kb = 0.515 °C/m

The value for i in this case is 1. Since sucrose is a covalent compound and it doesn't dissociate into ions. i = 1

The molal concentration of the solution can be found using this formula:

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Now that we know all the values, we can use the formula to find the change in the boiling point of water:

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ΔTb = 1 * 0.515 °C/m * 1 m

ΔTb = 0.515 °C

Finally, we are asked for the boiling point of the solution, not the change. The boiling point of water at atmospheric pressure is 100.00 °C. If the boiling point rises 0.515 °C when we prepare the solution. The boiling point of the solution is:

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<em>Explanation:</em>

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