Chemical Bond - QS Study
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Define Exothermic Reaction and Endothermic Reaction

Exothermic reaction: Exothermic reaction is the reaction where heat energy evolves. C (graphite) + O2 → CO2; ∆H298K = – 393.4 Kj mol-1 Endothermic reaction:......

Describe Hess’s Law

Hess’s law: If the initial and final condition remains constant the chemical reaction occurs at one step or more than one steps, in every step......

What is Ionic Product of Water?

Ionic product of water: The dissociation of water, H2 O+ ↔ H+ + OH– According to law of mass action, K = [H+] x [OH–]......

Why conjugated base of strong acid is weak and conjugated base of weak acid is strong?

The conjugated base of strong acid is weak and the conjugated base of weak acid is strong. It can be explain—clearly by reversible reaction. HB......

Explain Apply of Le Chateliar Principle

The principle of Le Chateliar: When a system is at equilibrium, a change in any one of the factors (such as temperature, pressure, concentration) upon......

Why the Value of Equilibrium Constant KC cannot be Zero or Infinity?

The constant KC is called the equilibrium constant and applies to reactions in solution. It contains only concentration terms. It should not included terms for......

What is Chemical Equilibrium?

Chemical equilibrium: A chemical equilibrium in a system is the state of the system when there is no observable change in the concentration of the......

What is Dynamic Equilibrium?

Dynamic equilibrium: When a reversible reaction reaches at equilibrium, then it seems to be stopped. Because, in this situation there seems to no change in......

Explain Law of Mass Action

In a particular temperature and time the rate of any reaction is proportional to the activation mass (Molar concentration and partial pressure) of the reactants......

Why Hydrobromic Acid (HBr) is a Polar Compound?

If the difference between the elctronegativity values of the two clement exceed 0.5, then the compound should be treated its polar covalent compound. Now, in......

What is Sigma Bond?

A sigma bond is formed by end to end overlap of two s-orbitals, one s and one p-orbital or two p-orbitals. It is denoted by......

Why Melting and Boiling Points of Iron(II) Chloride are Higher then Iron(III) Chloride?

Melting and Boiling Points of Iron(II) Chloride (FeCl2) are Higher then Iron(III) Chloride (FeCl3): If a metal atom forms several cations, then the cation with......

What is Pi (π) Bond?

Pi (π) bond: When two orbitals of two atoms overlap sidewise to form a covalent bond, the resulting bond is known as n-bond. It is......

Which type of Bonds is present in Ammonia Ion?

Formation of Ammonia ion (NH4): In ammonia there are three single N-H bonds and a lone pair on nitrogen atom. When it reacts with H+ ion,......

What is Melting Point of Formed Compound? Is it Soluble in Water?

The melting and boiling points of NaCI compound are 815°C and 1413°C respectively which is relatively high. NaCl or ionic compounds are soluble in water.......