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Elis [28]
3 years ago
10

Senthil wants to make a fabric that can substitute silk. Name the fabric that substitutes silk and explain the process of prepar

ing it.
​
Chemistry
1 answer:
Serhud [2]3 years ago
8 0

Answer:

Rayon

Explanation:

Rayon is a man-made fibre prepared from a natural raw material called cellulose by chemical treatment. The cellulose required for making rayon is obtained from wood pulp. Rayon is obtained by the chemical treatment of wood pulp. Wood pulp is dissolved in an alkaline solution to form sticky liquid called viscose.

hope this helps

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Which of the following phase changes only occurs in solids possessing vapor pressures above atmospheric pressure and at ambient
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<u>Answer:</u> The phase change process in which solids gets converted to gases is sublimation.

<u>Explanation:</u>

For the given options:

<u>Option a:</u>  Condensation

It is a type of process in which phase change occurs from gaseous state to liquid state at constant temperature.

Gas\rightleftharpoons Liquid

<u>Option b:</u>  Melting

It is a type of process in which phase change occurs from solid state to liquid state at constant temperature.

Solid\rightleftharpoons Liquid

<u>Option c:</u>  Sublimation

It is a type of process in which phase change occurs from solid state to gaseous state without passing through the liquid state at constant temperature.

Solid\rightleftharpoons Gas

<u>Option d:</u>  Deposition

It is a type of process in which phase change occurs from gaseous state to solid state without passing through the liquid state at constant temperature.

Gas\rightleftharpoons Solid

Hence, the phase change process in which solids gets converted to gases is sublimation.

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Explanation:

<em>If the sound is high then the frequency is also high but short-wavelength means lots of waves that always have a high pitch-sound and a high frequency. </em>

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Explanation:

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