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CHEMISTRY: ATOMS FIRST VOL 1 W/CON...

14th Edition
Burdge
ISBN: 9781259327933

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CHEMISTRY: ATOMS FIRST VOL 1 W/CON...

14th Edition
Burdge
ISBN: 9781259327933
Interpretation Introduction

Interpretation: Boiling point and freezing point of 3.12 m solution of Naphthalene in Benzene has to be identified.

Concept introduction

Boiling point is the temperature at which liquid turns into a gas. Example: boiling point of water is 100°C .  That is water changes from liquid phase to gas phase.

ΔTb= Tb- Tb°

Where,

ΔTb Change in boiling point

Tb -  Boiling point of the solution

Tb° -  Boiling point of pure solvent

Boiling point elevation (ΔTb) is distinction between boiling point of the pure solvent (Tb°) and the boiling point of the solution (Tb) .

ΔTb= Kbm

Where,

ΔTb Change in boiling point

Kb Molal boiling point constant

m- molality of the solution

Freezing point is the temperature at which liquid turns into solid.

Freezing point depression (ΔTf) is distinction between freezing point of the pure solvent (Tf°) and the freezing point of the solution (Tf) .

ΔTf= Kfm

Where,

ΔTf Change in freezing point

Kf Molal freezing point constant

m- molality of the solution

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