Solid liquids and gases Flashcards
density =
mass / volume
density measurement
kg / m^3
Measure density of a regular solid
find mass and volume of substance
Measure density of a regular solid
find mass and volume of substance
Pressure =
force / area
Pressure measurement
N / m^2 or Pa
Pressure difference =
height x density x gravitational field strength
Liquid particles
Random motion within a close-packed regular substance
Solid particles
Vibrate about fixed positions within a close-packed regular structure
Gas particles
Widely separated, quick and random
specific heat capacity measurement
J / kg ‘C
Molecules exert a pressure by …..
hitting the walls of their container
absolute zero
-273 ‘C
0 K
Kelvin temp of gas is proportional to
the average kinetic energy of its molecules
Relationship. between the pressure and kelvin temp for a fixed mass of a gas at constant volume
P1 / T1 = P2 / T2