Question

Derine relation between elevation
in boiling point
& molecular mass
of solute ! WB = 14. 18 gm, ΔT B = ?
WA - 1000gm, Kb = 0.52,
MB = 180gm​

Answer 1

The elevation in the boiling point of a solution is directly proportional to the molal concetration of the solution. <br> Hence , if

is the elevation in the boiling point of a solution of molal concetration m then , <br>

<br>

where

is a proportionality constant <br>

is called the ebullioscopic constant or molal elevation constant. <br> The molality of the solution is given by, <br>

<br> Let

= Weight (in gram) of a solvent, <br>

= Weight (in gram) of a solute, <br>

= Molecular weight of the solute <br> Then the molality (m) of the solution is given by, <br>

<br>

<br>

<br> This is the relation between elevation in boiling point and molar mass of the solute.

Answer 2

Explanation:

ᴛʜᴇ ᴇʟᴇᴠᴀᴛɪᴏɴ ɪɴ ᴛʜᴇ ʙᴏɪʟɪɴɢ ᴘᴏɪɴᴛ ᴏꜰ ᴀ ꜱᴏʟᴜᴛɪᴏɴ ɪꜱ ᴅɪʀᴇᴄᴛʟʏ ᴘʀᴏᴘᴏʀᴛɪᴏɴᴀʟ ᴛᴏ ᴛʜᴇ ᴍᴏʟᴀʟ ᴄᴏɴᴄᴇᴛʀᴀᴛɪᴏɴ ᴏꜰ ᴛʜᴇ ꜱᴏʟᴜᴛɪᴏɴ. ᴋʙ ɪꜱ ᴄᴀʟʟᴇᴅ ᴛʜᴇ ᴇʙᴜʟʟɪᴏꜱᴄᴏᴘɪᴄ ᴄᴏɴꜱᴛᴀɴᴛ ᴏʀ ᴍᴏʟᴀʟ ᴇʟᴇᴠᴀᴛɪᴏɴ ᴄᴏɴꜱᴛᴀɴᴛ.

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