Question

(b) A gas exerts pressure on the
walls of the container.
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Answer 1

Gᴀsᴇs ᴇxᴇʀᴛ ᴘʀᴇssᴜʀᴇ ᴏɴ ᴛʜᴇ ᴡᴀʟʟs ᴏғ ᴛʜᴇ ᴄᴏɴᴛᴀɪɴᴇʀ ʙᴇᴄᴀᴜsᴇ ᴛʜᴇ ɢᴀs ᴍᴏʟᴇᴄᴜʟᴇs. ... Tʜᴇʀᴇғᴏʀᴇ, ᴛʜᴇ ᴍᴏʟᴇᴄᴜʟᴇs ᴀʀᴇ ɪɴ ʀᴀɴᴅᴏᴍ ᴍᴏᴛɪᴏɴ. Dᴜᴇ ᴛᴏ ᴛʜɪs ᴍᴏᴛɪᴏɴ, ᴛʜᴇ ᴍᴏʟᴇᴄᴜʟᴇs ᴄᴏʟʟɪᴅᴇ ᴡɪᴛʜ ᴛʜᴇ ᴡᴀʟʟs ᴏғ ᴛʜᴇ ᴄᴏɴᴛᴀɪɴᴇʀ ᴀɴᴅ ᴇxᴇʀᴛ ᴀ ғᴏʀᴄᴇ ᴏɴ ᴛʜᴇ ᴡᴀʟʟs. Tʜᴜs, ᴀ ᴘʀᴇssᴜʀᴇ ɪs ᴇxᴇʀᴛᴇᴅ ᴏɴ ᴛʜᴇ ᴡᴀʟʟs.

Answer 2

$\huge\fcolorbox{red}{blue}{ANSWER}$

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A gas exerts pressure on the walls of the container because of the random motion of particles in the gas. Gases have weak intermolecular forces and the particles in continuous random motion and these particles collide with the walls of the container. These collisions with the walls of the container exerts pressure on the gas.

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