Question

explain why solids expand on heating?

Answer 1

Answer:

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Explanation:

When a solid is heated, its atoms vibrate faster about their fixed points. ... Heat causes the molecules to move faster, (heat energy is converted to kinetic energy ) which means that the volume of a gas increases more than the volume of a solid or liquid.

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Answer 2

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ᴡʜᴇɴ sᴏʟɪᴅ ɪs ʜᴇᴀᴛᴇᴅ ɪᴛ's ᴇᴠᴇʀʏ ᴘᴀʀᴛɪᴄʟᴇs ɢᴇᴛ ʜᴇᴀᴛ ᴇɴᴇʀɢʏ ᴀɴᴅ ɪɴᴄʀᴇᴀsᴇs ᴛʜᴇɪʀ ᴋɪɴᴇᴛɪᴄ ᴇɴᴇʀɢʏ. ᴛʜɪs ᴇɴᴇʀɢʏ ʟᴇᴛ's ᴛʜᴇᴍ ᴛᴏ ᴇxᴘᴀɴᴅ.

sᴏ, ᴛʜɪs ɪs ᴛʜᴇ ʀᴇᴀsᴏɴ ᴡʜᴜ sᴏʟɪᴅs ᴇxᴘᴀɴᴅ ᴏɴ ʜᴇᴀᴛɪɴɢ.