Question

why does physisorption decrease with increase of temperature?​

Answer 1

Answer:

Mark as it

Explanation:

It is because physical adsorption involves weak forces of attraction between adsorbent and adsorbent molecules, generally of Vander Waal's type. These forces decrease rapidly with increase in temperature.

Answer 2

Answer:

Iᴛ ɪs ʙᴇᴄᴀᴜsᴇ ᴘʜʏsɪᴄᴀʟ ᴀᴅsᴏʀᴘᴛɪᴏɴ ɪɴᴠᴏʟᴠᴇs ᴡᴇᴀᴋ ғᴏʀᴄᴇs ᴏғ ᴀᴛᴛʀᴀᴄᴛɪᴏɴ ʙᴇᴛᴡᴇᴇɴ ᴀᴅsᴏʀʙᴇɴᴛ ᴀɴᴅ ᴀᴅsᴏʀʙᴇɴᴛ ᴍᴏʟᴇᴄᴜʟᴇs, ɢᴇɴᴇʀᴀʟʟʏ ᴏғ Vᴀɴᴅᴇʀ Wᴀᴀʟ's ᴛʏᴘᴇ. Tʜᴇsᴇ ғᴏʀᴄᴇs ᴅᴇᴄʀᴇᴀsᴇ ʀᴀᴘɪᴅʟʏ ᴡɪᴛʜ ɪɴᴄʀᴇᴀsᴇ ɪɴ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ.

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