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ipn [44]
3 years ago
10

What dos the line of red semicircles maen on the weather map

Chemistry
2 answers:
PIT_PIT [208]3 years ago
6 0
The red semicircle shown in the weather chart represents warm front.

Svetradugi [14.3K]3 years ago
6 0

It's a warm front. The red means warm front.

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A drop of water weighing 0.48 g is vaporized at 100 ?c and condenses on the surface of a 55-g block of aluminum that is initiall
irakobra [83]
<h3><u>Answer;</u></h3>

<em>-49 °C</em>

<h3><u>Explanation and solution;</u></h3>
  • Considering the fact that, the specific heat capacity of aluminum is 0.903 J/g x C, and the heat of vaporization of water at 25 C is 44.0 KJ/mol.  

Moles water = 0.48 g / 18.02 g/mol

                      =0.0266  moles

<em>Heat lost by water</em> = 0.0266 mol x 44.0 kJ/mol

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<em>But heat lost =heat gained</em>

<em>Therefore;</em> Heat gained by aluminium = 1170 J  

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3 years ago
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