Question

#1: Which of the following conditions occurs as a liquid freezes?

A. Kinetic energy of the liquid molecules exceeds the strength of the intermolecular forces.

B. Kinetic energy of the liquid molecules equals the strength of the intermolecular forces.

C. Strengths of intermolecular forces of the liquid molecules exceed the kinetic energy of the molecules.

**my answer: C

not too sure tho.. is that right?? @UnkleRhaukus :)

Answer 1

#2: Two pots are at the same atmospheric pressure, but one has a lid on it. The pressure above the liquid in pot A is 115 kPa, while the pressure above pot B is 102 kPa. Which pot will boil at a higher temperature?

A. Pot A will boil at a higher temperature.

B. Pot B will boil at a higher temperature.

C. Both pots boil at the same temperature.

D. The pressure has no effect on boiling point.

**my answer: A. Pot A will boil at a higher temperature

is that right? :)

Answer 2

#3: The molecular masses of four substances are as follows: A = 16, B = 58, C = 86, D = 116. Which substance will have the lowest boiling point?

A,B,C, or D?

**my answer; A

is that right? :)

Answer 3

i think you've got them right so far

Answer 4

#4: In terms of intermolecular forces, explain why atoms and molecules in a liquid move in random patterns.

A. vibration alone

B. very little molecular motion at all

C. rapid random movement in straight lines alone

D. vibration and some linear motion like sliding around

**my answer: D. vibration and some linear motion like sliding around

is that right? :)

Answer 5

yay :)

#5: Which factor does not influence whether a substance will be a liquid at room temperature and normal atmospheric pressure?

A. strength of intermolecular forces

B. molecular shape

C. surface tension

D. molecular mass

**my answer: C. surface tension

not too sure tho.. is that right? :)

Answer 6

what do u think about those two @UnkleRhaukus ? :)

Answer 7

im not heaps sure, but you've chosen the options i would have chosen

Answer 8

okay!! Awesome :) thanks a bunch!! :D

Answer 9

good work!

Answer 10

thanks!!! :D

Answer 11

thanks!!! :D