When the cross-section is a hexagon, the prism is called a hexagonal prism. The surface area is made up of the end faces and rectangular faces that join them. To calculate the total surface area ...

The formula for the volume and surface area of a sphere will be given to you in the exam, so you will not need to memorise these. \(\text{The volume of a sphere} ~=~ \frac {4}{3} \times \pi \times ...

The sample is then exposed to a pure gas ... and the data is used to construct a BET plot. In addition to surface area, BET analysis can provide information about the porosity of a material. The total ...

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