Solids, Liquids and Gases

Question 0

The pressure at start is 3 Pa and the volume is 1.5 Litres. If the pressure afterwards is 6 Pa, what is the volume?

Answer 0

0.75 L

Question 1

Changing from a solid to a liquid…

Answer 1

Melting

Question 2

Pressure from a gas or liquid acts in which direction?

Answer 2

Equally in all

Question 3

If a tank that has a capacity of 10dm cubed is filled with air to 500 KPa, what will be the volume of the air at 702.6 KPa?

Answer 3

7.11dm cubed

Question 4

No temperature can ever be reached that is lower than

Answer 4

0 Kelvin

Question 5

What is absolute 0?

Answer 5

-273 degrees centigrade

Question 6

Pressure from a solid acts?

Answer 6

Downwards

Question 7

A chocolate bar has a mass of 800g and a volume of 20cm cubed- what is the density?

Answer 7

40 g/cm cubed

Question 8

Convert 100 C to Kelvin

Answer 8

373 K

Question 9

K means

Answer 9

Kelvin

Question 10

Pressure difference in a fluid=

Answer 10

Height m x density kg/m3 x gravity in N/ kg

Question 11

An ideal gas is sealed in a container at constant volume. If the temperature T is increased to 4T, the pressure will be?

Answer 11

Increased to 4P

Question 12

An ideal had is contained in a volume V at temp T. If the volume is doubled at constant pressure, the temperature will be

Answer 12

Doubled

Question 13

Temperature if a gas in Kelvin is proportional to?

Answer 13

The kinetic energy of its molecules

Question 14

The process of changing from a liquid to a gas is called?

Answer 14

Boiling or evaporating

Question 15

A temp of 317 Kelvins would have a value of ___ in C?

Answer 15

44C

Question 16

How do you convert C to K

Answer 16

Add 273

Question 17

An increase in temperature increases the ____ of gas molecules

Answer 17

Speed, or kinetic energu

Question 18

What is Brownian motion?

Answer 18

The apparently random motion of particles suspended in a gas or liquid caused by their bombardment by the fast moving liquid or gas particles.

Question 19

It is hard to begin inflating a balloon. A pressure of 800 KPa is needed to initially inflate the balloon 225 mL. What is the final pressure when the balloon has reached it’s capacity of 1.2L?

Answer 19

150KPa

Question 20

P1 x V1 =?

Answer 20

P2 x V2

Question 21

Pressure =

Answer 21

Pressure Pa = Force N / Area m squared

Question 22

A biscuit is stood on one end. The area is 2cm squared and the force is 0.8N. What is the pressure?

Answer 22

0.4 N/cm squared

Question 23

Symbol for density

Answer 23

p (rho)

Question 24

Describe the arrangement and motion of particles in a liquid

Answer 24

Random motion within a close packed irregular structire

Question 25

If the volume if the lungs is 2.4 L during exhalation and the pressure is 102.7 KPa, what is the volume of the lungs during inhalation?

Answer 25

2.412 L

Question 26

For a gas in a sealed container, pressure is proportional to

Answer 26

Temperature

Question 27

The arrangement and motion of particles in a solid?

Answer 27

They vibrate about fixed positions within a close packed regular structure

Question 28

Density =

Answer 28

Density kg/m cubed = mass kg / volume m cubed