Category: Pure Sciences

Boyle’s Law

Science > Chemistry > States of Matter > Boyle’s Law Mathematical relationships between volume, pressure, and temperature of a given mass of gas are referred to as Gas laws. In this article. we shall study Boyle’s Law. Boyle’s Law: In 1662, Robert Boyle, on the basis of his experiments put forward the law. It is […]

Physical Chemistry

Gaseous State

Science > Chemistry > States of Matter > Gaseous State In this article, we shall study the general characteristics of the gaseous state and the measurable properties of gases. General Characteristics of Gaseous State: A gas has neither a definite shape nor a definite volume. They acquire the volume and shape of the container in […]

Tags Absolute pressure, Absolute scale of temperature, Atmospheric pressure, Celsius scale, Fahrenheit scale, Gaseous state, Gauge pressure, Kelvin scale, Mass of gas, Number of moles of gas, Pressure of gas, Scale of temperature, Temperature of gas, Volume of gas

Physical Chemistry

Hydrogen Bonding

Science > Chemistry > States of Matter > Hydrogen Bonding Consider two polar molecules water H2O (molecular mass 18 and dipole moment 1.8 D) and nitrosyl fluoride ONF (molecular mass 49 and dipole moment 1.8 D). As their dipole moments are the same, their boiling points should be comparable. But boiling point of water is 100° […]

Tags Chemistry, Dipole-Dipole interaction, Dipole-Induced dipole interaction, Dispersion forces, Hydrogen Bonding, Interaction, Ion-Dipole interaction, London forces

Physical Chemistry

Interaction Between Molecules

Post author By Hemant More
Post date May 25, 2020
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Science > Chemistry > States of Matter > Interaction Between Molecules Intermolecular forces are the forces of attraction between neighbouring molecules, situated at a distance much closer in comparison with their molecular diameter. They vary from state to state of matter. These forces exist in all states of matter. Liquid and solid states of matter […]

Tags Chemistry, Dipole-Dipole interaction, Dipole-Induced dipole interaction, Dispersion forces, Hydrogen Bonding, Interaction, Ion-Dipole interaction, London forces

Physical Chemistry

Change of State of a Substance

Post author By Hemant More
Post date May 24, 2020
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Science > Chemistry > States of Matter > Change of State of a Substance In this article, we shall study a change in the state of a substance. Melting (Solid → Liquid): The process of change of solid substance into its liquid state is called melting or fusion. The constant temperature at which the solid […]

Physical Chemistry

Introduction to the Different States of Matter

Post author By Hemant More
Post date May 24, 2020
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Science > Chemistry > States of Matter > Introducion A matter is defined as anything that has mass, which occupies space and may be perceived by senses. There are three states of matter, viz. (a) solid, (b) liquid, and (c) gaseous states. Historical Perspective of States of Matter: Ancient Indian philosophers suggested that all the […]

Tags Bose-Einstein condensate, Gaseous state, Gases, Kinetic model of matter, Liquid state, Particle model of matter, Plasma state, Solid-state, States of matter

Physical Chemistry

Atomic Mass by Dulong Petit’s Law

Post author By Hemant More
Post date May 23, 2020
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Science > Chemistry > Concept of Atomic Mass and Equivalent Mass > Atomic Mass by Dulong Petit’s Law In previous articles, we have studied Cannizzaro’s method and law of isomorphism method to determine atomic mass. In this article, we shall study to calculate atomic mass by Dulong Petit’s law. Specific Heat: The amount of heat […]

Tags Atomic mass, Average of atomic mass, Chemistry, Determination of atomic mass, Dulong Petit's law, GAM, GAW, Gram atomic mass, Specific heat, Valency

Physical Chemistry

Atomic Mass Using Law of Isomorphism

Post author By Hemant More
Post date May 23, 2020
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Science > Chemistry > Concept of Atomic Mass and Equivalent Mass > Law of Isomorphism Method In the last article, we have studied determination of atomic mass by Cannizzaro’s method. In this article, we shall study the law of isomorphism and its use to find the atomic mass of a substance. This law was given […]

Tags Atomic mass, Average of atomic mass, Chemistry, Determination of atomic mass, Eilhard Mitscherlich, GAM, GAW, Gram atomic mass, Isomorphous, Law of isomorphism, Valency

Physical Chemistry

Cannizzaro’s Method of Determination of Atomic Mass

Post author By Hemant More
Post date May 23, 2020
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Science > Chemistry > Concept of Atomic Mass and Equivalent Mass > Cannizzaro’s Method In the last article, we have studied the concept of atomic mass and to calculate the average atomic mass. In this article, we shall study the Cannizzaro’s method for determination of atomic mass. This method was proposed by Cannizzaro, Stanislao (1826-1910), […]

Tags Atomic mass, Atomic weight, Average atomic mass, Cannizzaro's Method, Chemistry, Equivalent mass, GAM, GAW, Gram atomic mass, Valency

Physical Chemistry

Concept of Atomic Mass

Science > Chemistry > Concept of Atomic Mass and Equivalent Mass > Concept of Atomic Mass The smallest particle of an element which can take part in a chemical reaction is called an atom. According to Dalton’s atomic theory atom is the smallest particle of an element which is indivisible. In modern research, it is proved that […]

Tags Atomic mass, Atomic weight, Average atomic mass, Chemistry, Equivalent mass, GAM, GAW, Gram atomic mass, Valency