4.2 Thermal Physics

Question 1

Microscopic

Answer 1

Small scale

Question 2

Macroscopic

Answer 2

Large scale

Question 3

Isothermal

Answer 3

Constant temperature

Question 4

Boyles Law

Answer 4

For a fixed mass of gas at constant temperature,
The volume is inversely proportional to the pressure

Question 5

Charles law

Answer 5

For a fixed mass of gas at a constant pressure,
The volume is directly proportional to the temperature in Kelvin

Question 6

Gay-Lussac’s Law ( pressure law )

Answer 6

For a fixed mass of gas at constant volume,
The pressure is directly proportional to the temperature in Kelvin

Question 7

Mole

Answer 7

‘The amount of substance which contains as many particles as there are in 0.012 kg of carbon 12’

1 mole = 6.02 x10 23 molecules

Question 8

Specific heat capacity

Answer 8

The thermal energy required to raise the temperature of a body of mass, 1kg by 1k (kelvin)

Question 9

STP

Answer 9

Standard Temperature and Pressure taken as 0 degrees Celsius and 1x10 5 Pa