Question

Which ratio decides the efficiency of nano substances?

Answer 1

• Increased surface-to-volume ratio decides the efficiency of nano substances.
• Nanoscale substances have a greater surface-to-volume ratio that makes them highly reactive due to which we see a change in their property.
• For example - A chemically inert substance can become highly reactive when reduced to nanoscale.

Answer 2

The ratio which can decides the efficiency of nano substances is the surface area to volume ratio :

Explanation:

• A parameter that determines the functioning of nano material is surface area to volume ratio.

• The surface area to volume ratio for a material or substance that is  made up of nanoparticles has a extensive effect at the properties of the material.
• Firstly, substances made of nanoparticles have a relative large surface area whilst as in comparison to the same volume of material made of larger particles.

• The small granules of sugar dilute quicker than huge piece of sugar cube due to the fact SA/V ratio of sugar granules is more than sugar cube so in Sugar granules, a more part of sugar atoms will be on surface so contact with water will be greater compared to sugar cube and it'll dissolve quicker than huge piece of sugar cube.

Answer = surface area to volume ratio