top of page

 E2.  UNITS OF VOLUME, AREA & LENGTH & THEIR INTER-CONVERSION 

 2.1  LENGTH & 1-D 

It is logical to begin in one dimension and so key defining relationships for 1-D, i.e., length, would be as follows:

2021_Molar_gas_volume_amounts_pVnRT_v1nO
S.I. unit conversions: length, area & volume

 2.2  AREA & 2-D 

2021_Molar_gas_volume_amounts_pVnRT_v1nO

 2.3  VOLUME & 3-D 

Initially, visualisation is the key to correct conversions.  A sketch should be drawn, similar to the one shown opposite, to guide the conversion, until such times as a mental picture suffices.  Usually the sketch will not be able to show the exact physical quantities, but will indicate the values involved.

2021_Molar_gas_volume_amounts_pVnRT_v1nO
2021_Molar_gas_volume_amounts_pVnRT_v1nO

Volume unit conversions are
considered further in section F2 where the focus turns to solutions:

bottom of page