A result based on the size of an object at nanometer scale. For example, the quantum dots used in display screens emit different colors based on their actual size. See quantum dot. THIS DEFINITION ...

The rate of a chemical reaction can be increased by using smaller solid particles which increases the surface area of a solid reactant. This is done by cutting the substance into small pieces, or ...

The rate of a chemical reaction can be increased by using smaller solid particles which increases the surface area of a solid reactant. This is done by cutting the substance into small pieces, or ...