Author: Hemant More

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

Physical Chemistry

Gay-Lussac’s Law of Combining Volumes

Post author By Hemant More
Post date May 20, 2020
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Science > Chemistry > Laws of Chemical Combinations > Gay-Lussac’s Law of Combining Volumes In the previous article, we have studied the law of reciprocal proportions. In this article, we shall study Gay-Lussac’s Law of Combining Volumes. A French chemist Joseph L. Gay – Lussac in 1809, put forward this law. Statement : Whenever gases take […]

Tags Chemistry, Gay-Lussac, Gay-Lussac's law of combining volume, Laws of chemical combinations

Physical Chemistry

Law of Reciprocal Proportions

Post author By Hemant More
Post date May 20, 2020
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Science > Chemistry > Laws of Chemical Combinations > Law of Reciprocal Proportions In the previous article, we have studied the law of multiple proportions. In this article, we shall study the law of reciprocal proportions. The law of reciprocal proportions was given by German chemist Ritcher in 1792. Statement: The weights of two or […]

Tags Chemistry, Law of reciprocal proportions, Laws of chemical combinations, Ritcher

Physical Chemistry

Empirical and Molecular Formulae of Compounds

Post author By Hemant More
Post date May 20, 2020
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Science > Chemistry > Empirical and Molecular Formulae of Compounds In this article we shall study the concept of empirical formula and molecular formula of Compound. Empirical Formula: The empirical formula of a substance represents the simplest relative whole number ratio of the atoms of each element contained in the molecule of the substance. Example: […]

Tags Empirical formula, Molecular formula

Physical Chemistry

Law of Multiple Proportions

Post author By Hemant More
Post date May 15, 2020
2 Comments on Law of Multiple Proportions

Science > Chemistry > Laws of Chemical Combinations > Law of Multiple Proportions In the previous article, we have studied the law of definite proportions. In this article, we shall study the law of multiple proportions. The law of multiple proportions was given by British scientist John Dalton in 1803. Statement: When two elements combine […]

Tags Chemistry, John Dalton, Law of multiple proportions, Laws of chemical combinations