Science > Chemistry > Colloids > Coagulation of Colloidal Solution The process of precipitation of colloidal particles due to aggregation of the particles is called coagulation or flocculation. Explanation: The presence of the same type of electric charge on colloidal particles causes repulsion and keep them in a suspended state. If by some means, the […]
Category: Pure Sciences
Science > Chemistry > Colloids > Charge on Colloidal Particles The colloidal particles carry an electric charge. The most important property of colloidal solution is that all suspended particles possess either positive or a negative charge. i.e. they carry the same nature of the charge. The mutual forces of repulsion between similarly charged particles prevent […]
Properties of Colloids
Science > Chemistry > Colloids > Properties of Colloids In this article, we shall study the general, mechanical and optical properties of colloids. General Properties of Colloids: Heterogenous Character: The ultramicroscopic examination indicates that colloidal dispersion is a heterogeneous system consisting of a continuous dispersion medium and discontinuous disperse phase. Visibility: Colloidal particles cannot be seen […]
Electric Potential
Science > Physics > Electrostatics > Electric Potential Electric Potential at a Point: The electric potential at any point in the electric field is defined as the work that must be done by the external force to move unit positive charge from infinity to that point without acceleration. If W is the work done in […]
Photometry and Sources of Light
Science > Physics > Wave Theory of Light >Photometry and Sources of Light In this article, we shall study brief history of study of light, sources of light, andterminology of optics. History of Study of Light: Light is a form of that energy which simulates our vision. Around 400 B.C., it was proposed that particles […]
Introduction to Static Electricity
Science > Physics > Electrostatics > Introduction to Static Electricity Electricity is a very important form of energy which can be easily converted into other forms of energy. Electricity can be produced at one place and can be transmitted to long distances. Electricity is a branch of Physics which deals with charges, stationary and moving. […]
Correction to the Ideal Gas Equation
Science > Physics > Themodynamics > Correction to the Ideal Gas Equation In this article, we shall study the correction to ideal gas equation. Ideal Gas Equation: The equation of state for an ideal gas is given by PV = n RT Where, P = Pressure of gas, V = Volume of gas, n = No. of […]
Change of Phase
Science > Physics > Themodynamics > Change of Phase In this article, we should study the concept of phase, change of phase anfd the triple point of water. Phase: The phase of a substance is defined as its form which is homogeneous, physically distinct and mechanically separable from other forms of the substance. The term […]
Introduction to Thermodynamics
Science > Physics > Themodynamics > Introduction In this article, we shall study the concept of thermodynamics and thermodynamic state. Thermodynamics is a branch of physics that deals with the inter-conversion between heat energy and any other form of energy. Thermodynamic State: The simplest example of a system to which thermodynamics can be applied is […]
Epithelium or Epithelial Tissue
Science > Biology > Zoology > Histology > Epithelium or Epithelial Tissue In this article, we shall study about the epithelium or epithelial tissue. Higher-level organisms have multicellular structure. The cells differ from one another in their shape, size. Cells arise from pre-existing cells by the process of cell division. In multicellular organisms, cells are […]