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Reil [10]
2 years ago
9

Which statement best describes a physical change?

Chemistry
1 answer:
worty [1.4K]2 years ago
3 0

C because it is only the chemical reaction which remain the same

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Charles's law describes the relationship of the volume and temperature of
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Answer:

The temperature would be reduced by half

Explanation:

Charles' Law => V ∝ T =>  V = kT => k = V/T

For two sets of T vs V conditions, the system constant (k) remains unchanged and k₁ = k₂ => V₁/T₁ = V₂/T₂.

Therefore, if V₁ is reduced to 1/2V₁ = V₂ => V₁/T₁ = 1/2V₁/T₂ => V₁/T₁ = V₁/2T₂

and solving for T₂ =>  1/T₁ = 1/2T₂ => 2T₂ = T₁ => T₂ = 1/2T₁

∴ The initial temperature (T₁) would be reduced by half or, T₂ = 1/2T₁

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B. Argon's vibrational energy is not excited by infrared radiation.

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The property of carbon dioxide to get excited by infrared electromagnetic radiation is what qualifies it as a greenhouse gas. When infrared from the earth's surface is reflecting back to space, some of the radiation is absorbed and remitted by the carbon-dioxide molecules in the atmosphere. This causes a phenomenon called greenhouse effect that causes the atmosphere to be relatively warmer. The more the carbon dioxide molecules the more the greenhouse effect.

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3 years ago
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What does adhesion mean
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The action or process of adhering to a surface or object.

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At what temperature will water change from a liquid to a solid?
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