2 g each of two solutes A and B ( molar mass of A > B ) are dissolved separately in 50 g each of the same solvent . Which will show greater elevation in boiling point ?
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B will show greater lowering of vapour pressure because p°-ps/p°=w2×M1/w1M2.
Here,lowering of vapour pressure(p°-ps)is directly related with amount in gram & inversely related with molar mass of non-volatile solute.
Here,lowering of vapour pressure(p°-ps)is directly related with amount in gram & inversely related with molar mass of non-volatile solute.
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