IB Chemistry Flashcards
1
Q
Characteristics of a Solid?
A
Fixed Shape
Fixed Volume
Particles Closely Packed
Strong Forces Between Particles, They Vibrate About Fixed Positions
2
Q
Characteristics of a Liquid?
A
Particles Slightly more Spread Out
Weaker forces between particles, they can move past each other
Take the shape of the container
Fixed volume
3
Q
Characteristics of a Gas?
A
Particles are very spread out
Negligible forces between particles, move randomly
No Fixed Shape
No Fixed Volume
4
Q
Which Changes of State are Exothermic?
A
Deposition
Condensation
Freezing
5
Q
Which Changes of State are Endothermic?
A
Sublimation
Evaporation
Boiling
Melting
6
Q
Which substances undergo sublimation at atmospheric pressure?
A
iodine, carbon dioxide and ammonium chloride
