Question

Ethylene glycol has stronger intermolecular attractions than water. Do you expect the following properties to have...

Ethylene glycol has stronger intermolecular attractions than water. Do you expect the following properties to have larger or smaller values?

-A.B.

Surface tension of water
-A.B.

Boiling point of ethylene glycol
-A.B.

Freezing point of ethylene glycol
-A.B.

Viscocity of ethylene glycol
A.

Smaller
B.

Larger
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Homework Answers

Answer #1

1)

Surface tension of water

since intermolecular attraction is weaker in water,

Surface tension of water will be smaller

2)

Boiling point of ethylene glycol

since intermolecular attraction is stronger in ethylene glycol,

Boiling point of ethylene glycol will be larger

3)

Freezing point of ethylene glycol

since intermolecular attraction is stronger in ethylene glycol,

Freezing point of ethylene glycol will be larger

4)

Viscosity of ethylene glycol

since intermolecular attraction is stronger in ethylene glycol,

Surface tension of ethylene glycol will be larger

Hence its viscosity will be larger

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