14.01-14.20-Particle Model

Question 1

What 2 states have similar densities?

Answer 1

Solid and liquids

Question 2

In gases by how many times do the spaces between atoms increase by?

Answer 2

x10

Question 3

What is conserved during a change in state?

Answer 3

Mass

Question 4

What will heating a system do?

Answer 4

.Change the energy stored within a system
.Raise its temperature
.Produce changes in state

Question 5

Define Specific heat capacity

Answer 5

The energy required to raise the temperature of 1kg of substance by 1 degree celsius

Question 6

Define specific latent heat

Answer 6

The energy required to change the state of 1kg of a substance without a change in temperature

Question 7

Give a way you could reduce unwanted energy transfer

Answer 7

Thermal insulation

Question 8

What does increasing the pressure of gas cause it to do?

Answer 8

.Causes it to compress-(Smaller volume)

Question 9

What does doing work on a gas do?

Answer 9

Increase its temperature

Question 10

What does increasing the temperature of a gas do to its particles?

Answer 10

Increase the velocity

Question 11

What is the temperature of absolute 0

Answer 11

-273 degrees celsius

Question 12

What happens to the particles at absolute 0?

Answer 12

.There is no motion

Question 13

How can gases be expanded or compressed?

Answer 13

By pressure changes

Question 14

What does the pressure of a gas produce?

Answer 14

A net force at right angles to any surface

Question 15

Whats the correlation between changing the volume of gas and the particles colliding?

Answer 15

Increase-Less collisions

Decrease-More collisions

Question 16

How can doing work on a gas increase the temperature?

Answer 16

Energy is transferred to the particles when more gas is added into a fixed volume so this heats the gas