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Answer to Question #52250 in Physical Chemistry for vi

Question #52250
A liquid will "wet" a surface if:
the liquid has a lesser density than the surface
the forces between the liquid molecules are weak
the liquid has a low vapor pressure
the forces between the molecules and the surface are greater than the forces between the molecules of the liquid
8 Which of the followings does NOT influence the magnitude of surface tension?
Hydrogen bonds
Metallic bonding
Ionic bonding
Dispersion forces
9 Which of the following is true when ice melts?
a phase change occurs from a solid phase to liquid phase
an endothermic process occurs which requires energy
the water changes from a crystalline solid to a liquid
all of the above
10 Which of the following is true when water freezes?
a phase change occurs from a liquid phase to a solid phase
an exothermic process occurs where energy is lost from ice to the surroundings
the liquid water changes from a random structure to a crystalline solid
all of the above
Expert's answer
the forces between the molecules and the surface are greater than the forces between the molecules of the liquid
Dispersion forces
all of the above
all of the above

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