1.09 Behaviour of gases

Question 1

gas has mass but no

Answer 1

shape and volume

Question 2

gas consists of mostly

Answer 2

empty space

Question 3

how do the molecules move averagely

Answer 3

rapidly and colide

Question 4

avagrados law

Answer 4

equal volumes of all gases, at the same temperature and pressure, have the same number of molecules.

Question 5

When volume-pressure-temperature changes, what does not change?

Answer 5

mass- Number of particles-molecules

Question 6

Gases exert pressure by..

Answer 6

air molecules colliding with walls of inner surface and exert force

Question 7

pressure metric system unit

Answer 7

Pa-Pascal

Question 8

1000 kilo pascal is how many pascal

Answer 8

1

Question 9

conversion of pressure:

Atmosphere atm : 1
mm of mercury/mm Hg :
Torr :
Pounds per square inch :
Pascal :
KiloPascal :

What’s the method?

Answer 9

Atmosphere atm : 1
mm of mercury/mm Hg : 760
Torr : 760
Pounds per square inch :14.7
Pascal : 1000,000
KiloPascal : 101.3

given amount * converting conversion number/ given conversion number

Question 10

Gases are compressible True or False

Answer 10

True

Question 11

diffusion

give example, explain

Answer 11

you cut an onion on one side of a room and then go to the other and it smells why?

the molecules that make up the odor move through the air from higher concentration into the lower concentration

Question 12

Boyles law molecules

Answer 12

Pressure is also affected by the volume of the container. If the volume of a container is decreased, the gas molecules have less space in which to move around. As a result, they will strike the walls of the container more often and the pressure increases. As you increase pressure on the balloon surface the air inside also increases and volume is lessened

Question 13

is Boyles law directly proportional or inversely proportional why?

Answer 13

inversely proportional as pressure increases volume decreases and vice versa

Question 14

barometer

Answer 14

a device that used a column of mercury to measure the pressure that exerts on all things around us

Question 15

what is constant in Boyles law

Answer 15

Temperature and gas molecules

Question 16

Boyles law formula

Answer 16

P1 * V1 = P2 * V2

Question 17

Jaques Charles

Answer 17

volume and temperature relation

Question 18

is Charles’s law directly proportional or inversely proportional why?

Answer 18

directly proportional, as temperature increases volume increases

Question 19

Charles law molecules

Answer 19

gas molecules move because they have internal energy heating receiving more energy and move faster and collision and the space between them expands and so does the volume

Question 20

Charles law formula

Answer 20

V1 / T1 = V2/ T1

Question 21

Gay Lussacs law

Answer 21

relation between the tempreture and pressure

Question 22

What constant in Charles’s law

Answer 22

Temperature and amount of molecules in gas

Question 23

What constant in Gays law

Answer 23

Volume and amount of molecules in gas

Question 24

Molecules in Gay lussacs law

Answer 24

As Temperature increases pressure increases
As the can heat up, it may explode. The kinetic-molecular theory explains why. The kinetic energy causes the air molecules to move faster and they impact the container walls more frequently and with more force. The increase in pressure inside may eventually exceed the strength of the can and it will explode. An additional factor is that the soup may begin boiling which will then aid even more gas and more pressure to the inside of the can. The kinetic energy of the gas molecules increases, so collisions with the walls of the container are now more forceful than they were before. As a result, the pressure of the gas doubles. Decreasing the temperature would have the opposite effect, and the pressure of an enclosed gas would decrease.

Question 25

Gay Lussacs Formula

Answer 25

P1 / T1 = P2/ T2

Question 26

is Gay law directly proportional or inversely proportional why?

Answer 26

directly proportional