Particle model of matter

Question 1

How are the molecules arranged in a solid?

Answer 1

Packed in a regular structure

Question 2

How are molecules arranged in a liquid?

Answer 2

Are close together but atoms can move to one place to the other.

Question 3

How are molecules arranged in a gas?

Answer 3

Separated by relatively large distances

Question 4

Which state has the strongest force of attraction?

Answer 4

Solid

Question 5

What is the equation of density?

Answer 5

Mass / volume

Question 6

What is mass measured in?

Answer 6

Kg

Question 7

What is volume measured in M^3

Question 7

What is internal energy?

Answer 7

The energy that is stored inside a system by the particles that make up that system.

Question 8

What is internal energy the total of?

Answer 8

Kennewick energy and potential energy that make up the system

Question 9

What is the name of when a substance changes from a gas to a solid or vice versa?

Answer 9

Sublimation

Question 10

What is specific heat capacity?

Answer 10

When the temperature of the system is increased by supplying energy to

Question 11

What does the increase in temperature in specific heat capacity depend on?

Answer 11

. The mass of the substance heated
. What the substance is made of
. The energy put into the system.

Question 12

What needs more energy to increase its temperature by 1° C water or concrete?

Answer 12

Water

Question 13

What gives out more energy when cooling water or concrete?

Answer 13

Water

Question 14

What is latent heat?

Answer 14

The energy needed for 1kg of a substance to change its state with no change in temperature

Question 15

What is the smaller number atomic or mass?

Answer 15

Atomic

Question 16

What type of change is changing state?

Answer 16

Physical

Question 17

What is specific latent heat of fusion?

Answer 17

The energy required to change 1kg of solid into 1kg of liquid at the same temperature

Question 18

What is specific latent heat of vaporisation?

Answer 18

The energy required to chang e1kg of a liquid into 1kg of a gas at the same temperature

Question 19

What happens to the energy of a substance when it freezes?

Answer 19

It is transferred to the surroundings

Question 20

What happens to the volume of a gas as pressure increases

Answer 20

Volume decreases

Question 21

What is Boyle’s Law?

Answer 21

That for a gas at a constant temperature, pressure x volume is also constant

Question 21

When do we use pV= contestant

Answer 21

If the mass and the temperature of the gas stay the same

Question 22

How does the temperature of a gas effect the kinetic energy of the molecules?

Answer 22

As the temperature of gas increases kinetic energy increases.

Question 23

Do particles loose kinetic energy as they hit they hit the sides of the container?

Answer 23

No

Question 24

What happens when to the container wall as particles hit it?

Answer 24

They exert a pressure on a wall

Question 25

What happens to the speed of the particles as temperature increases?

Answer 25

Increases

Question 26

What happens to the pressure as temperature increases?

Answer 26

Pressure increases

Question 27

What is the formula that has pressure in it?

Answer 27

Pressure x volume = constant

Question 28

What is specific heat capacity?

Answer 28

The amount of heat an object can absorb