we can easily move our hand in air but to do the same through a solid block of wood we need a karate expert?
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6
Answer:
The particles of a gas are constantly moving in all the directions with different speeds. Therefore they do not have a fixed volume and hence completely fill the vessel in which they are kept.
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25
Answer:
➪ᴀɪʀ ɪs ᴀ ᴍɪxᴛᴜʀᴇ ᴏғ ɢᴀsᴇs ᴀɴᴅ sɪɴᴄᴇ ᴘᴀʀᴛɪᴄʟᴇs ᴏғ ɢᴀs ᴀʀᴇ ғᴀʀ ᴀᴘᴀʀᴛ sᴏ sᴀᴍᴇ ɪs ᴛʀᴜᴇ ғᴏʀ ᴀɪʀ ᴛʜᴇʀᴇғᴏʀᴇ ᴡᴇ ᴄᴀɴ ᴇᴀsɪʟʏ ᴍᴏᴠᴇ ᴏᴜʀ ʜᴀɴᴅ ɪɴ ᴀɪʀ.ʙᴜᴛ ᴀ sᴏʟɪᴅ ʙʟᴏᴄᴋ ᴏғ ᴡᴏᴏᴅ ɪs ʜᴀʀᴅ ᴀɴᴅ ʀɪɢɪᴅ ᴛʜᴀᴛ ʀᴇsɪsᴛs ᴀɴʏ ᴄʜᴀɴɢᴇ ɪɴ ʟᴏᴄᴀᴛɪᴏɴ ᴏғ ɪᴛs ᴘᴀʀᴛɪᴄʟᴇs ʜᴇɴᴄᴇ ᴡᴇ ɴᴇᴇᴅ ᴀ ᴋᴀʀᴀᴛᴇ ᴇxᴘᴇʀᴛ ɪɴ ᴄᴀsᴇ ᴏғ sᴏʟɪᴅ ʙʟᴏᴄᴋs ᴏғ ᴡᴏᴏᴅ
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