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Daniel [21]
3 years ago
10

When talking on a phone, the voice is transformed into electrical energy. This energy passes over wires or is transmitted throug

h the air. Into what kind of energy does the speaker in the phone on the other end change the electrical energy?
Chemistry
2 answers:
Art [367]3 years ago
5 0
It transferred from electrical to sound.
dedylja [7]3 years ago
3 0

The speaker changes the electrical energy into sound energy.

Explanation: "Speakers in a phone convert electrical energy into sound energy, so it can be heard by the person speaking from the other phone."

You might be interested in
A sample of H2 gas (12.28 g) occupies 100.0 L at 400.0 K and 2.00 atm. A sample weighing 9.49 g occupies ________ L at 353 K and
lutik1710 [3]

Considering the ideal gas law, a sample weighing 9.49 g occupies 68.67 L at 353 K and 2.00 atm.

Ideal gases are a simplification of real gases that is done to study them more easily. It is considered to be formed by point particles, do not interact with each other and move randomly. It is also considered that the molecules of an ideal gas, in themselves, do not occupy any volume.

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:

P× V = n× R× T

In this case, you know:

  • P= 2 atm
  • V= ?
  • n= 9.49 gramsx\frac{1 mole}{2 grams} = 4.745moles being 2g/mole  the molar mass of H2, that is, the amount of mass that a substance contains in one mole.
  • R= 0.082 \frac{atmL}{molK}
  • T= 353 K

Replacing:

2 atm× V = 4.745 moles× 0.082\frac{atmL}{molK}× 353 K

Solving:

V = (4.745 moles× 0.082\frac{atmL}{molK}× 353 K)÷ 2 atm

<u><em>V= 68.67 L</em></u>

Finally, a sample weighing 9.49 g occupies 68.67 L at 353 K and 2.00 atm.

Learn more:

  • brainly.com/question/4147359?referrer=searchResults
5 0
3 years ago
When vectors are added or subtracted, the net force is called the _____.
Bezzdna [24]

Answer:

resultant

Explanation:

4 0
3 years ago
Pure octane has a boiling point of 125.7 degrees Celsius but can be steam distilled with water at a temperature of 90 degrees Ce
MArishka [77]

Answer:

76

Explanation:

444

3 0
3 years ago
Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90° bond angle in it.
seraphim [82]

Answer:

(C) PCl₅

Explanation:

(A) AlCl₄⁻

The central atom has 4 bond pairs and 0 lone pair. Hybridization is sp³. The geometry is tetrahedral which has an angle of 109.5°.

(B) NH₃

The central atom has 3 bond pairs and 1 lone pair. Hybridization is sp³. The geometry is pyramidal which has an angle of approximately 107.5°.

(C) PCl₅

The central atom has 5 bond pairs and 0 lone pair. Hybridization is sp³d². The geometry is trigonal bipyramidal in which the equatorial bonds has an angle of 120° and axial bond has an angle of 90°.

(D) CO₂

The central atom has 4 bond pairs and 0 lone pair. Hybridization is sp. The geometry is linear which has an angle of 180°.

(E) H₂O

The central atom has 2 bond pairs and 2 lone pairs. Hybridization is sp³. The geometry is bent shape which has an angle of approximately 105.5°.

8 0
3 years ago
Does sealing a tanker car cause it to implode?
Ksenya-84 [330]

Answer:

yes

Explanation:

the build up of pressure eventually becomes to much for the tanker then yes, it will implode with a possibility of an explosion.

4 0
3 years ago
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