How Soap perform cleansing action?
Soaps and detergents perform the cleaning action because the polar parts of their molecules are water soluble due to hydrogen-bonding and non-polar parts remain outside water.
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Crystal Lattice Definition Chemistry | Unit Cell Definition
A crystal lattice is defined as an array of points representing atoms, ions or molecules of a crystal, arranged at different sites in three dimensional space. Formation: A crystal may contains atoms, ions or molecules. In crystalline solids, these atoms, ions or molecules are located at definite positions in space. These are represented by points…
Definition and Explanation of Boiling Point
The temperature at which vapour 34.6°C / 78.3°C/100’C/1 pressure of a liquid becomes equal to the atmospheric pressure or any other external pressure on the liquid is called boiling point of that liquid. Mechanism: When a liquid is heated, its vapour 200 pressure increases with the increase in temperature as shown in figure. A stage…
Application of Boiling Point | Vacuum Distillation
Liquids can be made to boil at low temperature where they can be distilled easily. This process is called vacuum distillation. Vacuum distillation has many advantages. It decreases time for the distillation process and is economical because less fuel is required. Many compounds can be avoided from decomposition e.g., glycerin boils at 290°C at 760…
Molar Volume of a Gas Definition
The volume of one mole of an ideal gas at standard temperature and pressure is called molar volume of a gas and is equal to 22.414 dm3 at STP (Standard temperature & pressure) & 24 dm3 at RTP (Room temperature & pressure). Explanation: At standard temperature and pressure: 2 g of hydrogen (H2) = 1…
How to do Dimensional Analysis in Chemistry?
Dimensional analysis in Chemistry is often a tricky concept for students to get. Still, it is a significant one and one that you will use throughout all of your chemistry classes. Dimensional analysis is the process we use to convert a value from one unit or set of units to another. Some important questions to…
Phase and Phase System (Solution Solvent Solute)
Phase Matter with uniform properties and a fixed composition is called a phase. Types of Phase System There are two types of phase. (i) Homogeneous Phase System (Single Phase System) Water at normal pressure and at room temperature exists as a single liquid phase, i.e. all the properties of water are uniform throughout this liquid…
