When a woolen yarn is knitted to get a sweater The change can be classified as answer?

Is Woollen yarn to knitted sweater a reversible change?

In case of woolen yarn to a knitted sweater, the sweater can be changed into woolen by just taking out the tread so yes it is also a reversed change.

Is knitting of sweater reversible change or irreversible change?

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Woollen yarn to knitted sweater is a reversible reaction because knitted sweater can be open up to make a yarn again.

Why knitting of sweater is physical change?

Answer: In a physical change no new substance is formed . in this case when the wool is knitted into a sweater only the appearance is changed no new substance is formed . we can get back the wool from the sweater and thus it is a physical change .

When a woolen yarn is?

Woolen (American English) or woollen (Commonwealth English) is a type of yarn made from carded wool. Woolen yarn is soft, light, stretchy, and full of air. … Woolen yarn is in contrast to worsted yarn, in which the fibers are combed to lie parallel rather than carded, producing a hard, strong yarn.

Can woolen yarn be knitted?

Woollen yarn to knitted sweater is a reversible change because knitted yarn in this method is the result of woollen yarn and its chemical properties do not alter.

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What is reversible change?

A reversible change is a change that can be undone or reversed. If you can get back the substances you started the reaction with, that’s a reversible reaction. … Examples of reversible reactions include dissolving, evaporation, melting and freezing.

What are the changes that can be reversed called?

A change which can happen backward, that is, can be reversed is called a reversible change. If you keep water in the freezer for some time, it transforms into ice. But as soon as you take it out of the freezer, it turns into water again. This is a reversible change.

Which of the following change can be reversed?

Conversion of ice into water and water into ice is an example of change which can be reversed.

Why melting of ice is a reversible change?

Answer: The melting of a ice is a reversible change because ice melts due to increased temperature (room temp.) melted ice can be solidified back by freezing it. Hence, it is a reversible change.

Is digesting food reversible or irreversible?

Digestion of food is irreversible as digested food can’t come out from the body in the form of food.