Density and Temperature

Density

a measurement that takes into account how much mass can be packed into a specific amount of space

density = mass/volume

solid: most dense (g/cm3)

liquid: intermediate density (g/mL)

gases: least dense (g/L)

Density is an intensive chemical property. what does this mean

• all pure substances have a unique density at a specific temperature + pressure

• density can be used to ID an unknown substance

temperature

a measurement of how cold or hot a system is.

English Temperature Unit

Fahrenheit

Metric Unit

Celsius

SI

Kelvin, K (no degree symbol)

• actually, a measurement of the average kinetic energy particles have in a particular sample

what does direct relationship for temperature mean?

as temperature increases, kinetic energy increases

as temperature decreases, kinetic energy decreases

Celsius to Fahrenheit Conversion

F = 1.8(C) + 32

Kelvin Conversion

K = 273 + C