Give reasons : A gas exerts pressure on walls of container.

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easy

Give reasons : A gas exerts pressure on the walls of the container.

Option A

Option B

Option C

Option D

Solution

The motion of particles is random and having very high speed in the gaseous state.Due to this random movement, the particles hit each other and also the walls of the container. The pressure exerted by the gas is due to this force exerted by these particles per unit area on the walls of the container.

Standard 9

Science

The mass per unit volume of a substance is called density.

(density = mass/volume).

Arrange the following in order of increasing density-air, exhaust from chimneys, honey, water, chalk, cotton and iron.

medium

Give reasons : We can easily move our hand in air but to do the same through a solid block of wood we need a karate expert.

medium

Convert the following temperatures to the kelvin scale.

$(a)$ $25\,^oC $

$(b)$ $373\,^oC$

easy

For any substance, why does the temperature remain constant during the change of state ?

medium

What is the physical state of water at $(a)$ $25\,^oC$ $(b)$ $0\,^oC$ $(c)$ $100\,^oC$ ?

medium

Give reasons : A gas exerts pressure on the walls of the container.

Solution

Similar Questions

The mass per unit volume of a substance is called density. (density = mass/volume). Arrange the following in order of increasing density-air, exhaust from chimneys, honey, water, chalk, cotton and iron.

Give reasons : We can easily move our hand in air but to do the same through a solid block of wood we need a karate expert.

Convert the following temperatures to the kelvin scale. $(a)$ $25\,^oC $ $(b)$ $373\,^oC$

For any substance, why does the temperature remain constant during the change of state ?

What is the physical state of water at $(a)$ $25\,^oC$ $(b)$ $0\,^oC$ $(c)$ $100\,^oC$ ?

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The mass per unit volume of a substance is called density.

(density = mass/volume).

Arrange the following in order of increasing density-air, exhaust from chimneys, honey, water, chalk, cotton and iron.

Convert the following temperatures to the kelvin scale.

$(a)$ $25\,^oC $

$(b)$ $373\,^oC$