Chapter 6

Question 1

properties of gas

Answer 1

• High kinetic energy
  –Travel in straight lines until they collide
  –There is a lot of empty space between the
  particles

Question 2

is the force exerted
per unit area

Answer 2

pressure

Question 3

is an evacuated glass
tube, the tip of which is submerged in a
pool of mercury (Hg).

Answer 3

barometer

Question 4

on the liquid
mercury’s surface forces the mercury
upward into the evacuated tube.Atmospheric pressure

Answer 4

Atmospheric pressure

Question 4

on the liquid
mercury’s surface forces the mercury
upward into the evacuated tube.Atmospheric pressure

Answer 4

Atmospheric pressure

Question 5

nc on slide 7

Question 6

here is an inverse
relationship between
volume and pressure.

Answer 6

Boyle’s Law

Question 7

The volume of a fixed amount of gas (n) at
a constant pressure (P) increases linearly
with increasing temperature (in kelvins).

Answer 7

Charles’ Law

Question 8

If the lines are extrapolated back to a volume of “0,”
they all show the same temperature,

Answer 8

absolute zero

Question 9

volume directly proportional to the
number of gas molecules when P
and T are constant

Answer 9

avogadro’s law

Question 10

The simple gas laws can be combined into a
single law –

Answer 10

ideal gas law

Question 11

gas constant.

Answer 11

R

Question 12

is used to
compare the properties of different gases.

Answer 12

A standard set of conditions

Question 13

are U-shaped tubes partially
filled with a liquid that is connected to the
gas sample on one side and open to
the air on the other.

Answer 13

manometers

Question 14

measure of the gas pressure relative to
atmospheric pressure.

Answer 14

• The difference in the liquid levels

Question 15

The pressure of a single gas in a mixture of
gases is called its

Answer 15

parial pressure

Question 16

The sum of the partial pressures of all the gases
in the mixture equals the total pressure

Answer 16

Dalton’s Law of Partial Pressures

Question 17

The pressure due to any individual
component in a gas mixture is its

Answer 17

partial
pressure (P n).

Question 18

the partial pressure of the water vapor, c

Answer 18

vapor pressure

Question 19

The simplest model that describes the
behavior of gases is the

Answer 19

kinetic molecular theory

Question 20

The particles of the gas (either atoms or molecules) are

Answer 20

constantly moving.

Question 21

The attraction between particles is

Answer 21

negligible

Question 22

The average kinetic energy of the gas particles is
directly proportional to the Kelvin temperature.

Answer 22

Kinetic Molecular Theory (KMT)

Question 23

The result of many particles in a gas sample
exerting forces on the surfaces around them
is a

Answer 23

constant pressure

Question 24

the kinetic molecular theory is a

Answer 24

quantitative model

Question 25

the average distance a molecule travels between collisions is called the

Answer 25

mean free path

Question 26

The process of a collection of molecules spreading out from high concentration to low concentration is called

Answer 26

diffusion

Question 27

The process by which a collection of molecules escapes through a small hole into a vacuum is called

Answer 27

effusion

Question 28

The rates of diffusion and effusion of a gas are both related to what

Answer 28

its rms velocity

Question 29

often do not behave like ideal gases at high pressure or low temperature.

Answer 29

Real gases

Question 30

to account for the behavior of real gases at high pressure.

Answer 30

Johannes van der Waals