Question

Give scientific reason: 5 Marks 11. A. A gas fills the vessels completely. B. We prefer to wear cotton clothes during Summer.​

Answer 1

• Ans. A) The molecules of a gas have very high kinetic energy and large intermolecular spaces and practically negligible intermolecular forces and tbus fill entire space of the vessel.

• Ans. B) we prefer cotton clothes in summer because cotton is a good absorber of water and absorb the sweat which causes cooling effect by evaporation.

Hope it helps you

Answer 2

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$\large\sf\bold{Question \: A \: :-}$

Q - ★ Reason for A gas fills the vessels completely :-

$\large\sf\bold{Answer \: A \: :-}$

A - ★Gases have a negligible intermolecular force of attraction between the particles of gas. As a result, the random motion of particles in all directions is experiencing in the vessel. Hence, the gas fills the vessel completely in which it is kept.

$\large\sf\bold{Question \: B \: :-}$

Q - ★ Reason for why we prefer to wear cotton clothes during Summer :-

$\large\sf\bold{Answer \: B \: :-}$

A - ★We generally sweat so much in summers .The cotton fabric has a special characteristic that is a good absorber of water helps in absorbing the sweat and exposing it to the atmosphere for easy evaporation.