Definition: The refractive index (RI) is a fundamental optical property that quantifies how much a substance can bend or refract light. It is defined as the ratio of the speed of light in a vacuum to the speed of light in the medium of interest. The refractive index is a …
Solid- crystalline, amorphous & polymorphism
Crystalline solid 1. Definition: – Crystalline solids are characterized by a highly ordered and repeating three-dimensional arrangement of atoms, ions, or molecules. – The regular arrangement leads to the formation of a crystal lattice with well-defined planes and angles. 2. Atomic Arrangement: – Atoms in crystalline solids …
Glassy states: Definition, Characteristics, Uses
Glassy states refer to the non-crystalline, amorphous phase that certain materials exhibit when transitioning from a liquid to a solid-like state. Rapidly cooling a liquid prevents the formation of a regular, repeating crystal lattice, leading to the occurrence of this transition. The resulting glassy state lacks long-range order in the …
Liquid crystals: Definition, Structure, Properties and Phase
Liquid crystals are a distinct state of matter that exhibits properties of both liquids and crystals. They possess an intermediate level of order and fluidity, which sets them apart from conventional liquids and solids. Understanding liquid crystals involves exploring their unique molecular organization, physical properties, and diverse applications. 1. Molecular …
Liquid complexes: Definition, Responses, and system
Definition Mechanical Responses Competing Processes in Complex Systems Quantification of Complexity Criteria for Complexity Causes of Materials Complexity Variability in Liquids’ Complexity Upon Cooling Complexity in Classical 3D Liquids Behavior of Two-Dimensional (2D) Liquids Mosaic States in 2D Liquids Characteristic of Mosaic
Relative Humidity: Definition, Calculation, and Factors affecting
1. Definition Relative humidity (RH) measures the amount of moisture in the air relative to the maximum amount it can hold at a particular temperature. It is expressed as a percentage and provides insights into the air’s saturation level with water vapor. 2. Calculation The formula for calculating relative humidity …
Aerosols and Inhalers: Definition, Types, and Uses
Aerosols and inhalers are indispensable tools in respiratory medicine, playing a pivotal role in managing various respiratory conditions such as asthma, chronic obstructive pulmonary disease (COPD), and other lung disorders. This detailed note aims to comprehensively understand aerosols and inhalers, exploring their types, mechanisms of action, components, and the significance …
Sublimation Critical Point
Definition Sublimation is a phase transition process in which a substance transitions directly from the solid to the gas phase without passing through the liquid phase. This occurs when the temperature and pressure conditions are such that the solid’s vapor pressure exceeds its melting point, making the liquid phase unnecessary. …