Chemistry

  • First Law of Thermodynamics

    First Law of Thermodynamics statement & derivation

    Statement of First Law of Thermodynamics The first law of thermodynamics also known as the ‘Law of Conservation of Energy’. “ Energy can neither be created nor destroyed, but only be changed from one form to another form”. Or “…

  • ionic character covalent bond

    Ionic Character of Covalent Bond

    The molecules consisting of different atoms are known as polar molecules e.g. H2O, HF, etc. In these molecules shared electrons are not equally attracted and the electron cloud is shifted towards more electronegativity atom. The atoms become partially charged. This…

  • construction of Standard Hydrogen Electrode-min

    Standard Hydrogen Electrode (SHE) : Definition Applications and diagram

    Standard Hydrogen Electrode (SHE) is hydrogen electrodes consists of a platinum plate immersed in the 1 molar solution of the sulphuric acid. A current of pure hydrogen gas is passed continuously through the solution under the presence of 1-atm. The…

  • le Chatelier's Principle

    le Chatelier’s Principle Statement and Different Effects

    Statement of Le Chatelier’s Principle: “When a constraint or stress in a direction is applied to a system in equilibrium, the equilibrium position changes so as to undo the constraint”. Or “If a system in equilibrium is altered by changing concentration,…

  • Common Ion Effect

    Common Ion Effect Applications, problems and examples

    Common Ion Effect can be described as“The lowering of the degree of discussion of weak electrolytes by adding a strong electrolyte having a common ion ”. Or “The decrease in the solubility of the salt in a solution that already…

  • bond energy

    Bond Energy : definition formula and examples

    “The amount of energy required to break a bond between two atoms in a diatomic molecule is known as bond energy”. SI Unit of Bond Energy Bond energy is expressed in kilojoules per mole (KJ/mol) unit. Factors Affecting Bond Energy…

  • chemical Equilibrium

    Chemical Equilibrium: reversible reaction & forward reaction + examples

    Chemical Reaction Any change which alters the composition of a substance is known as chemical change or chemical reaction. Types of Reaction There are two types of reactions: Irreversible reaction or One-sided Reactions or Complete Reactions Reversible reactions or Two-sided…

  • Difference Between VBT and MOT

    Difference Between valence bond theory (VBT) and Molecular orbital theory (MOT)

    Difference Between VBT and MOT VBT and MOT describe two dissimilar kinds of bondings. The valence bond theory (VBT) explains bonding behavior in metals. The molecular orbital theory (MOT) describes bonding behavior in molecules. VBT Atomic orbitals are mono-centric. Atoms,…

  • Difference Between Solubility and Solubility Product

    What is the Difference Between Solubility and Solubility Product?

    solubility and solubility products are two distinct entities in chemistry. the basic Difference Between Solubility and Solubility Product is that Solubility is the property of a substance to dissolve in a solvent and depends on temperature, pressure, and PH. it…

  • difference between sigma and pi bond

    Difference between Sigma and Pi Bond

    Atoms are tightly packed together by chemical bonds. bonds are forces to keep atoms together during interactions with each other. these chemical bonds are divided into four types such as ionic bonds, hydrogen bonds, covalent, and coordinate covalent or polar…

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