Intermolecular Forces

Intermolecular Forces Intermolecular forces are defined as the set of attractive and repulsive forces that occur between the molecules as a result of the polarity......

What is Standard Entropy?

The absolute entropy of a pure substance at 25°C (298 K) and 1 atm pressure is called the standard entropy, S°. The standard entropies of......

Describe on Characteristics of Free Energy

Characteristics of Free energy ‘G’ i) G is defined as (H-TS) where H and S are the enthalpy and entropy of the system respectively. T......

Explain on Gibbs Free Energy ‘G’

Gibbs Free Energy ‘G’: According to II law of thermodynamics, inorder to predict the spontaneity of a process entropy of universe is considered. ΔSunivers is......

When does Entropy Increase in a Process?

Entropy increase in a process a) In a chemical reaction, when number of molecules of products are more than the number of molecules of reactant......

Explain on Standard Free Energy (G°)

Standard Free Energy (G°): Like standard enthalpy of formation of substances, standard enthalpy change of a reaction, standard free energy of formation of substances and......

How to Measure Units of Entropy?

Units of entropy: The dimension of entropy are energy in terms of heat X temperature-1. The entropy is expressed as calories per degree which is......

Explain Characteristics of Entropy ‘S’

Characteristics of entropy ‘S’ i) The term ‘S’ entropy is evolved from the formulation of II law of thermodynamics as a thermodynamic state function. ii)......

Define and Describe on Entopy Change

Entopy change in a physical (phase) transformation can be determined particularly for evaporation of liquids at the boiling points, using Trouton’s rule. According to this......

What is Super Conductors?

The ability of certain ultra cold substances to conduct electricity without resistance is called super conductivity. This superconductivity state is a state in which a......

Applications of Super Conductors

Application of super conductors 1) It is a basis of new generation of energy saving power systems. Super conducting generators are smaller in size and......

Why Glasses are Amorphous Solids?

Amorphous solids possess properties of incompressibility and rigidity to a certain extent but they do not have definite geometrical forms. When certain liquids are cooled......