1.2 Thermal Physics

Question 1

Boyle’s law

Answer 1

For a fixed mass of gas at cons temp, the volume is inversely proportional to pressure

Question 2

Isothermal meaning

Answer 2

Cons temp

Question 3

Charles’ law

Answer 3

For a fixed mass of gas at con pressure the volume is directly proportional to the temperature in kelvin

Question 4

Pressure law

Answer 4

For a fixed mass of gas at cons volume the pressure is directly proportional to the temperature in kelvin

Question 5

Ideal gas law eq

Answer 5

p x V / T = k

p1 x V1 / T1 = p2 x V2 / T2

Question 6

Microscopic
Macroscopic

Answer 6

Small scale
Large scale

Question 7

Mole

Answer 7

Amount of substance which contains as many particles as there are in 0.012kg of carbon 12

Question 8

Specific heat capacity

Answer 8

Thermal energy required to heat 1kg of mass by 1K

Question 9

STP

Answer 9

Standard temperature and pressure, 0 degrees Celsius and 1x10^5 Pa

Question 10

Internal energy

Answer 10

Sum of PE and ke in molecules

Question 11

Kinetic theory ideal gas assumptions (FEVvt)

Answer 11

No intermolecular forces
V and t are negligible
v is constant
Energy is conserved as collisions are elastic