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Kinetic Energy
Dynamic Equilibrium
Phase Diagrams
Vocabulary
Pressure Conversions
100
Kinetic energy is energy of ______?
What is motion
100
What two processes are occurring at the same rate when a compound exists as a solid and a liquid?
What is melting/freezing
100
If a liquid is sealed in a container and temperature is increased, what happens to the pressure?
What is increase
100
Define allotrope
What is an element that forms two or more different molecular forms
100
127 mm Hg, in atmospheres
What is 0.167 atm
200
How did we see kinetic energy in our changes of state lab?
What is by measuring temperature
200
What two processes are occurring at the same rate when a compound exists as a liquid and a gas?
What is condensation/evaporation
200
The normal boiling point of Ethanoic acid (which has a lower vapor pressure than water at 100 degrees C) is higher or lower than the normal boiling point of water?(pg. 394)
What is higher than the normal boiling point of water.
200
What is an amorphous solid?
What is a solid lacking ordered internal structure
200
1.5 atm, in kPa
What is 151.95 kPa
300
Which type of compound requires more kinetic energy to change from a solid to a liquid, molecular or ionic?
What is ionic....to change from solid to liquid you need to overcome attraction. Ionic compounds are more strongly attracted to each other than molecular compounds.
300
Can dynamic equilibrium exist in an open container?
What is No....the rates of two processes will not be equal.
300
What happens to the rate of condensation as a liquid is cooled?
What is it increases
300
What differentiates a boiling point and a normal boiling point?
What is... Normal boiling points are measured at standard pressure (101.3 kPa)
300
759 mm Hg, in kPa
What is 101.17 kPa
400
Which temperature scale is directly proportional to average kinetic energy?
What is Kelvin
400
On a phase diagram, the location where dynamic equilibrium exists is represented by a _______?
What is a line
400
The change of a substance from a solid to a gas is called
What is sublimation
400
Define vapor pressure
What is the force exerted by a gas above a liquid
400
470 mm Hg, is what percent of standard pressure?
What is 61.8%
500
As evaporation occurs, the particles that will escape the liquid phase first.....
What is have the highest kinetic energy
500
Explain why increasing the temp of a liquid increases its rate of evaporation?
What is more molecules will have the necessary energy to escape attraction in the liquid phase.
500
What is a triple point
What is when solid/liquid/and gas can exist at the same temperature and pressure. Where the lines intersect on a phase diagram.
500
Explain the basis of the kinetic theory
What is...all matter consists of tiny particles that are in constant motion.
500
1 atm= _____ mm Hg = _____ kPa
What is 760, 101.3