Enthalpy of combustion, formation,sublimation, fusion, vaporisation/unit-6
Enthalpy of Combustion: The enthalpy change when one mole of a substance is completely burnt in excess of oxygen or … Read more
Class 11
Enthalpy of bond dissociation/unit-6
Enthalpy of bond dissociation: Chemical reactions involve the breaking and making of chemical bonds. When a bond is formed between … Read more
hess’s law of constant heat summation/unit-6
Hess’s Law of Constant Heat Summation: In 1840 a Russian chemist G.H. Hess proposed an important generalisation regarding the enthalpies … Read more
First law of thermodynamics/unit-6
Energy of the universe is present either as kinetic energy or as potential energy. During a physical or chemical change, … Read more
thermodynamic process/unit-6
The state of a thermodynamic system can be changed by a process. In other wards, a process gives the path … Read more
macroscopic properties of the system/unit-6
The properties of the system which arise from the bulk behavior of matter are called macroscopic properties. For examples, pressure, … Read more
Thermodynamics/unit-6
The branch of science which deals with the study of different forms of energy and their interconversion is called thermodynamics. … Read more
Liquefaction of gases/unit-5
Liquefaction of Gases: Gases can be liquefied by lowering the temperature and increasing the pressure. According to kinetic molecular model … Read more
Gas laws/unit-5
Gas Laws: The macroscopic behavior of gases can be described by certain generalization. These generalized observations are called bas laws. … Read more
Intermolecular force/state of matter/unit-5
State Of Matter (Gases and Liquids): Matter exists in three different physical states, namely solid, liquid and gaseous states. The … Read more