Physical Properties of matter

Question 1

what are the 3 states of matter?

Answer 1

Solid, Liquid, Gas

Question 2

What is the name of the motion to describe particles that move in a linear motion?

Answer 2

Translational

Question 3

What is the name of the motion to describe particles that move back and forth?

Answer 3

Vibrational

Question 4

What does IMF stand for?

Answer 4

Intermolecular Forces

Question 5

Name the phase change between gas and solid states

Answer 5

Deposition, or Sublimation

Question 6

Name 2 characteristic physical properties:

Answer 6

Melting point and boiling point

Question 7

Potential energy of a given sample of matter depends on its…

Answer 7

IMF

Question 8

5 points of the KMT

Answer 8

1 - The gas consists of objects with a defined mass and zero volume
2 - The gas particles travel randomly in a straight line motion where their movement can be described by the fundamental laws of mechanics
3 - All collisions involving particles are elastic; the KE of the system is conserved even though the KE among the particles is redistributed
4 - The gas particles do not interact with each other or with the walls of any container
5 - The gas phase system with have an average KE that is proportional to temperature; the KE will be distributed among the particles according to a Boltzmann type of distribution

Question 9

Which states of matter has the largest negative potential energy?

Answer 9

Solid state

Question 10

Which state of matter is the least dense?

Answer 10

Gaseous state

Question 11

Which state of matter has small, but significant, IMF?

Answer 11

Liquid state

Question 12

Temperature is a good form of what energy?

Answer 12

Kinetic energy

Question 13

Deposition

Answer 13

Changes from gas to a solid

Question 14

Intermolecular forces are…

Answer 14

The forces between two or more molecules of the same compound, that bind them together to form liquids and solids

Question 15

When a solid brass sphere is heated, its density…

Answer 15

decreases

Question 16

Endothermic processes…

Answer 16

Generally cause substances to increase in volume

Question 17

Sublimation

Answer 17

solid to gas

Question 18

How does the Galileo Thermometer work?

Answer 18

• Less dense objects float on more dense objects
• When the temperature increases, the KE also goes up, as well as the velocity of the liquid particles, causing the volume to increase
• Volume up, density down, when liquids warm up, their density decreases
• Density = mass/volume, density is inversely proportional to volume
• The Galileo Thermometer is read by reading the temperature off the lowest floating density calibrated bulb
• When the liquid warms up, it becomes less dense, causing fewer density calibrated bulbs to float on it