Question

A gas can be liquefied [ a) By increasing the temperature b) By lowering the pressure of By increasing the pressure and reducing the temperature d) None of these The change of state from vapour to liquid is called [ d) Fusion 1 Sublimation



i want explanation

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Answer 1

Answer:

1.A gas can be liquefied by:

Increasing the pressure and reducing the temperature

When you increase the pressure the molecules gets compressed. It changes from gas to liquid.

Also, when you decrease temperature the molecules gets compressed. It changes from gas to liquid. (like how people huddle together when they feel cold)

(refer picture)

2.The change of state from vapour to liquid is called condensation.

Answer 2

Answer:

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