States of Matter
What are the 3 states of matter in order from the LEAST to MOST amount of energy of the particles?
solid, liquid, gas
What is "Normal" pressure (STP) in any unit you want!
1 atm, 101.3 kpa, 760 mm Hg/torr
The term for when a liquid turns into a gas?
vaporization
What is the definition of boiling point?
When the vapor pressure equals the atmospheric pressure.
Convert -12OC to Kelvin
261K
Liquids have a fixed shape, but not a fixed volume. True or False?
False
What is pressure a force over a certain _____________
area
What is the term called for when a gas turns into a liquid?
condensation
IMFs increase or decrease when a substance is evaporated.
IMFs decrease
Evaporation is a ____________________ process allowing humans to regulate their body temperature.
Cooling
Describe the motion of solids
They vibrate around FIXED positions
Convert 2.5 atm to mmHg
1900 mmHg
What is the opposite of melting?
Freezing
Going from a solid to a gas in one step is endothermic or exothermic? Why?
Endothermic - energy required
List the 3 IMFs in order of increasing strength
LDF, DD, HBond
Which state(s) of matter can be compressed?
Gasses
Convert 79.0 kPa to mm Hg
593 mm Hg
What is it called when a gas is produced by a solid (skipping the liquid phase)
sublimation
As the speed of the particles decrease, what is happens in terms of kinetic energy?
What is the SI Unit for Pressure?
Pascals
Which states of matter can flow?
Gasses & Liquids
How can you make water boil at 105OC instead of 100OC
increase the pressure (pressure cooker)
What temperature does melting and freezing occur for water?
0 degrees celcius
What is broken when water boils: The covalent bonds between hydrogen and oxygen, the hydrogen bonds between water molecules? EXPLAIN!
Hydrogen bonds break
What is the instrument used to measure pressure?
Barometer