ch 10

Question 1

phases of matter

Answer 1

solids, liquids and gases

Question 2

solids have

Answer 2

the strongest intermolecular forces and a fixed volume shape

Question 3

liquids have

Answer 3

a weaker intermolecular force and takes the shape of the container but not volume

Question 4

Gases

Answer 4

Fills the entire container (volume) takes the shape
Intermolecular forces are very weak
Lowest density of matter
Particles do not interact much with each other

Question 5

Kinetic molecular theory

Answer 5

describes the behaviour of ideal gases

Question 6

T IS ALWAYS IN

Answer 6

K

Question 7

T (in K)=

Answer 7

T (in K)= T(in C + 273.15)

Question 8

Pressure formula

Answer 8

Pressure= Force/Area

Question 9

How do ideal gases behave?

Answer 9

1 ideal gases are in constant, random motion and move in straight lines

2 the volume of a volume gas is considered to be zero

3 They are elastic

4 There are no intermolecular forces (they dont attract or repel each other)

5 Temperature is directly proportional to the average kinetic energy of the gas particle

Question 10

Any gas behaves ideally in what conditions

Answer 10

Any gas behaves ideally in low pressures and high temperatures

Question 11

What would happen if gases had volume

Answer 11

They would be large and have more intermolecular forces to each other. They would react less with the walls and result in a decrease of pressure

Question 12

What would happen if collisions were not elastic?

Answer 12

Over time the particles would hit the walls with less force and there would be a decrease in pressure

Question 13

SI unit of pressure

Answer 13

1 Pa = 1N/m^2

Question 14

atmospheric pressure

Answer 14

1 atm=1bar

Question 15

avogradro says

Answer 15

more particles=larger volume
volume in gas is directly proportional to the number of moles in the gas

Question 16

Avogadros law

Answer 16

Vn=k, where V is the volume of the gas, n is the number of moles of the gas, and k is a proportionality constant.

Question 17

Boyle says

Answer 17

higher pressure, smaller volume

Question 18

boyle law

Answer 18

P1V1=P2V2
where mols and temperature are constant

Question 19

Charles says

Answer 19

The higher the temperature the larger the volume

Question 20

Charles law

Answer 20

V₁ / T₁ = V₂ / T₂, where V₁ and T₁ are the initial volume and temperature, respectively. Similarly, V₂ and T₂ are the final values of these gas parameters.

Where mols and pressure are constant

Question 21

All the laws combined gives

Answer 21

The ideal gas law
PV=nRT
P=atm
V=L
T=K