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klemol [59]
3 years ago
15

What Period # is this element found in? P​

Chemistry
1 answer:
77julia77 [94]3 years ago
8 0
15 is the group that phosphorus is found in.
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Perform the following operation
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If you pump air into cycle tyre a slight warming effect is noticed at valve stem why
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Of the following, ________ should have the highest critical temperature. Of the following, ________ should have the highest crit
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5 0
2 years ago
Please select the best answer and click "submit."
vladimir1956 [14]
When it comes to physical changes like phase changes, there are two types of heat energy: sensible heat and latent heat. Sensible heat is the heat absorbed/released when you heat the substance but it doesn't change phase. An example would be heating lukewarm water. The substance is liquid all throughout. Latent heat, on the other hand, is the heat absorbed/released when there is a phase change. An example would be boiling water, because it changes liquid to vapor. 

Hence, for freezing liquid, you use the latent heat, specifically the heat of fusion. The answer should be

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The answer is not in the choices. You only use Hvap if you boil water.
5 0
3 years ago
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