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ap chem > IMFs on Properties > Flashcards

IMFs on Properties Flashcards

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1
Q

What is the relationship between IMFs and melting point?

A

Stronger IMFs –> higher melting point
(more energy must be inputted to disrupt all the strong IMFs)

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2
Q

What is the relationship between IMFs and boiling point?

A

Stronger IMFs –> higher boiling point
(more energy must be inputted to disrupt all the strong IMFs)

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3
Q

What is the relationship between IMFs and heat of fusion?

A

Stronger IMFs –> higher heat of fusion (more energy must be inputted to disrupt all the IMFs and liberate solid to liquid)

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4
Q

What is the relationship between IMFs and heat of vaporization?

A

Stronger IMFs –> greater heat of vaporization
(more energy must be inputted to disrupt all the strong IMFs)

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5
Q

What is the relationship between IMFs and critical temperature?

A

Stronger IMFs – greater critical temperature
(substances with stronger IMFs are able to liquefy over a longer range)

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6
Q

What is the relationship between IMFs and critical pressure?

A

Stronger IMFs –> greater critical pressure

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7
Q

What is the relationship between IMFs and surface tension?

A

Stronger IMFs –> stronger surface tension (meniscus)

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8
Q

What is the relationship between IMFs and viscosity?

A

Stronger IMFs –> more viscous

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9
Q

What is the relationship between IMFs and vapor pressure?

A

Stronger IMFs –> lower vapor pressure
(molecules are able to hold onto each other better in the liquid phase and will resist escaping into the gas)

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10
Q

What is the relationship between IMFs and volatility?

A

Stronger IMFs –> less volatile

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11
Q

(ions) How does decreasing ionic radius affect melting point?

A

Increases melting point
(increases the strength of coloumbic attractions)

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12
Q

(ions) How does decreasinf ionic radius affect lattice energy?

A

Increases lattice energy
(increases the strength of coloumbic attractions)

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13
Q

(ions) How does increasing ionic radius affect the heat of fusion?

A

Increases heat of fusion
(increases the strength of coloumbic attractions)

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14
Q

(ions) How does increasing charge density affect melting point?

A

Increases melting point
(increases the strength of coloumbic attractions)

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15
Q

(ions) How does increasing charge density affect lattice energy?

A

Increases lattice energy
(increases the strength of coloumbic attractions)

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16
Q

(ions) How does increasing charge density affect the heat of fusion?

A

Increases heat of fusion
(increases the strength of coloumbic attractions)

17
Q

What is the relationship between molar mass and LDFs?

A

Increasing molar mass –> greater surface area –> more polarizable –> stronger IMFs

ap chem (2 decks)

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