Rank the following compounds in order of decreasing boiling point: KCl, CO2, CH2O Rank from highest...
Rank the following compounds in order of decreasing boiling point: KCl, CO2, CH2O Rank from highest to lowest boiling point. To rank items as equivalent, overlap them.
Homework Answers
Order Of Boiling points = KCl > HCHO > CO2
KCl is ionic compound so there are strong electro static force of attractions bet ween K+ ion and Cl- ion in crystal lattice. so for breaking of electroststic forces it require more energy hence it has high boiling point (1420 C)
HCHO has dipole dipole interactions hence it has higher boiling point compare to Carbon dioxide (-19degreeC)
CO2 is has no net dipole moment hence it has only vander waals force of attraction so it has low boing point compare with other two compounds (-78 degree C)
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