Articles Posted in the " Basics of Thermodynamics " Category

  • Van der Waals Equation

    Van der Waals Equation

      Van der Waals Equation  It is a real gas equation. It is not perfect gas equation. In includes two corrections. First correction for the inter-molecular attractions which are weak forces of attractions and repulsion between two molecules of the same substance. we use p =Kinetic pressure –internal pressure =p’-a/v2 p = p’ –a/v2 p’ […]

  • Different Temperature Scales

    Different Temperature Scales

    Different Temperature Scales Different temperature scales use different fixed points. COMPARISON OF DIFFERENT TEMPERATURE SCALES Sr. No. Fixed point Celsius (0C) Fahrenheit 0F Kelvin K Rankine R 1. Absolute zero 273.15 -459.67 0.00 0.00 2. Ice point 0.00 32 273.15 459.67 3. Triple point of water 0.00 32 273.15 459.67 4. Steam point 100 212 […]



    THERMODYNAMIC EQUILIBRIUM Thermodynamic equilibrium is defined for a system. This type of  equilibrium means that the value of a certain property is same at various points. Under thermodynamic equilibrium, there is no variation of any property with respect to time, space and state etc. For this to achieve, thermodynamic equilibrium require the following types of […]

  • Energies


    ENERGY Energy is the capacity to do work. It units are kJ. It is of two types. 1. Stored Energy—It is the energy possessed by a system within its boundaries. Examples of stored energy a. Potential energy b. Kinetic energy c. Internal energy d. Chemical energy e. Nuclear energy     2. Transit Energy—It is […]

  • Types of engines

    Types of engines

     Types of engines Definition of an engine An engine is a device which does two functions. (i)Produces motion (produces power) as in a scooter/bike, car, bus, train and aircraft (ii) Generate electricity as in generators and vehicles TYPES OF ENGINES There are many considerations for the various types of engines (I) Power generation Intermittent power […]

  • States of matter & phase change process 

    States of matter & phase change process 

     States of matter & phase change process  Differentiate between the three states of matter Solids  Liquids Gases Have fixed volume and fixed shape Have fixed volume But have variable shape Variable volume And variable shape What are the various types of phase changes? Five types of phase changes Phase change    Name of Process Practical Application […]



    STEADY FLOW ENERGY EQUATION Steady flow means there is no change with respect to time.  There is no change in the properties with respect to time.Steady flow is constant rate of flow of fluid throughout the control volume. The control volume of a thermodynamic system is  fixed area in space through which mass will enter the […]