Question

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${ \red{ \bf{QUESTION ⤵}}}$
Give few examples of thermal expansion and explain them.

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Answer 1

Answer:

- The air in a car tyre gets warm after a long journey and this increases its pressure. - Railway lines require expansion gaps (similar to bridges) to avoid buckling in hot weather

Answer 2

${\huge{\red{Answer:}}}$

${\large{\bold{Example\:of\:thermal\:expansion\: in\: solids}}}$

Exᴘᴀɴsɪᴏɴ ᴊᴏɪɴᴛs ᴇxᴘᴀɴᴅs ᴡʜᴇɴ ɪᴛ ɪs ʜᴏᴛ(ᴡʜᴇɴ ʀᴀɪʟ ᴄᴏɴᴛʀᴀᴄᴛ):Tʜᴇ ᴘᴀʀᴛɪᴄʟᴇs ᴀʀᴇ ɴᴏᴛ ғʀᴇᴇ ᴛᴏ ᴍᴏᴠᴇ. Sᴏʟɪᴅs ᴛᴏ ɴᴏᴛ ᴇxᴘᴀɴᴅ ᴍᴜᴄʜ.

${Example \: of \: thermal \: expansion \: in \: liquid}$

Mᴇʀᴄᴜʀʏ ᴇxᴘᴀɴᴅs ᴡʜᴇɴ ʜᴇᴀᴛᴇᴅ: Tʜᴇ ᴘᴀʀᴛɪᴄʟᴇs ᴍᴏᴠᴇ ᴍᴏʀᴇ ғʀᴇᴇʟʏ ᴛʜᴀɴ ɪɴ sᴏʟɪᴅs. Lɪϙᴜɪᴅ ᴜsᴜᴀʟʟʏ ᴇxᴘᴀɴᴅs ᴍᴏʀᴇ ᴛʜᴀɴ sᴏʟɪᴅs.

ᎬХᎪᎷᏢᏞᎬ ϴҒ ᎬХᏢᎪΝՏᏆϴΝ ᏆΝ ᏀᎪՏᎬՏ

Tʜᴇ ɢᴀs ɪɴsɪᴅᴇ ʙᴀʟʟᴏᴏɴ ᴇxᴘᴀɴᴅs ᴡʜᴇɴ ʜᴇᴀᴛᴇᴅ: Tʜᴇ ᴘᴀʀᴛɪᴄʟᴇs ᴀʀᴇ ғᴀʀ ᴀᴘᴀʀᴛ ᴀɴᴅ ᴍᴏᴠᴇ ᴍᴏʀᴇ ғʀᴇᴇʟʏ ᴛʜᴀɴ ɪɴ ʟɪϙᴜɪᴅs. Gᴀsᴇs ᴜsᴜᴀʟʟʏ ᴇxᴘᴀɴᴅs ᴍᴏʀᴇ ᴛʜᴀɴ ʟɪϙᴜɪᴅs.