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Morgarella [4.7K]
2 years ago
9

Which statement best describles how the remote control communicates with the television to change the volume of th sound

Chemistry
1 answer:
storchak [24]2 years ago
7 0

Answer:

Following are the statement to this question:

Explanation:

The opinions were missing in this problem, which is why its solution can be described as follows:

The given statement better explains why the remote control communicates only with television to change the volume of sound because the Low energy has long waves and higher energy has shorter waves. Its remote control provides low energy radiation to both the light detector on the front of a TV, and it will be the only source for this type of radiation with less power and more than microwaves than visible light. When an object is not sufficiently hot to emit infrared radiation, a bulk of its power is infrared.

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Nonbonding pairs of electrons.

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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

                                 =1.17 kJ => 1170 J  

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

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

        1170 = 55 x 0.903 ( T - 25) = 49.7 T - 1242  

                   1170 + 1242 = 49.7 T  

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<em>Hence</em>, final temperature = 49 °C

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