Chemistry I

 
  • First Law of Thermodynamics and Enthalpy of a System C1203002

    First Law of Thermodynamics and Enthalpy of a System C1203002

    Zeroth Law of Thermodynamics: If two bodies (say A and B) are in thermal equilibrium of the third body (say C) then body A and B will also be in thermal equilibrium with each other First Law of Thermodynamics: Different forms of the first law of thermodynamics are as follows Energy can’t be created nor destroyed but it can be […]

     
  •  
  • Chemical Thermodyamics and Energetics C1203001

    Chemical Thermodyamics and Energetics C1203001

    Thermodynamics is the branch of science that deals with the different forms of energy, the quantitative relationships between them and the energy changes that occur in the physical and chemical process. Limitations of Thermodynamics: Thermodynamics deal with macroscopic properties like pressure, temperature, volume, and composition. It does not concern with atomic structure and molecular structure. It can predict whether the […]

     
  •  
  • Chemical Equilibrium C1106004

    Chemical Equilibrium C1106004

    Physical Equilibrium – 02: Dissolution of Gases in Liquids: The best example of this type of equilibrium is in soda water. When the bottle is opened the carbon dioxide gas dissolved in it fizzles out rapidly. The equilibrium between the carbon dioxide gas (solute) and water (solvent) may be represented by CO2(g) ⇌ CO2(in solution) By Henry’s law “The mass of […]

     
  •  
  • Chemical Equilibrium C1106003

    Chemical Equilibrium C1106003

    Physical Equilibrium: Some Definitions: The melting point of a solid: For any pure substance at atmospheric pressure, the temperature at which the solid and liquid can coexist is called as a normal melting point of the solid. The freezing point of a liquid: For any pure substance at atmospheric pressure, the temperature at which the solid and liquid can coexist […]

     
  •  
  • Chemical Equilibrium C1106002

    Chemical Equilibrium C1106002

    Unit – I – 02 Types of Chemical Reactions (Contd.) Depending upon the direction of the reaction: Reversible Reaction: A chemical reaction, in which the products formed react with each other to give back the original reactants, is called a reversible reaction. conventionally the reaction proceeding from left to right is called as a forward reaction while that proceeding from right to […]

     
  •  
  • Chemical Equilibrium C1106001

    Chemical Equilibrium C1106001

    Unit – I – 01 Chemical Reactions and Their Types: Introduction: In a chemical reaction one or more substances, called reactants undergo a chemical change to produce new substances called products of the reaction. Thus a chemical reaction is a process in which reactants undergo a change to produce products. Reactants: One or more substances which react and undergo chemical change […]

     
  •  
  • Solutions and Colligative Properties C11202018

    Solutions and Colligative Properties C11202018

    Unit – V B Laws of Osmotic Pressure: van’t Hoff’s Theory of Osmotic Pressure: He found that the solute particles in dilute solutions possess kinetic energy and move in a random directions in the solutions. Thus they have similar behaviour as that of gas molecules. On collision against semipermeable membrane the solute molecules exert osmotic pressure equal to the pressure which the solute […]

     
  •  
  • Solutions and Colligative Properties C11202017

    Solutions and Colligative Properties C11202017

    Unit – V A Osmosis and Osmotic Pressure: Semipermeable Membrane: Semipermeable membrane is a membrane which allows the solvent molecules, but not the solute molecules through it. Examples: Cellulosde, cellulose nitrate, animal bladder. Osmosis: The spontaneous and unidirectional flow of solvent molecules through a semipermeable membrane, into a solution OR flow of solvent from a solution of low concentration to a solution […]

     
  •  
  • Solutions and Colligative Properties C11202016

    Unit – IV C Problems: 1. Which of the following aqueous solutions will have maximum depression in freezing point. a) 0.5 M Li2SO4 b) 1 M NaCl  c) 0.5 M Al2(SO4)3 d) 0.5 M BaCl2 A solution containing 0.73 g of camphor (molar mass 152 g mol-1) in 36.8 g of acetone (boiling point 56.3° C) boils at 56.55° C. A […]

     
  •  
  • Solutions and Colligative Properties C11202015

    Solutions and Colligative Properties C11202015

    Unit – IV B Freezing Point Depression: Freezing Point of a Liquid: Freezing point of a liquid is a temperature at which the vapour pressure of solid is equal to the vapour pressure of liquid. Depression of Freezing Point of a Liquid: The lowering of vapour pressure of a solution causes a lowering of the freezing point compared to that of […]

     
  •  
 
 
 

Search

 




 

Recent in Physics