chemistry involves the separation and detailed examination of selected kinds of matter. in the study of chemistry, the relative quantities of matter and associated energy are measured. THE METRIC SYSTEM For a universal, u…
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This is a measure of the useful work that a system is capable of doing (apart from volume changes). This is defined by the equation below: G = H – TS ………………………..1 Like entropy (H) and enthalpy (S), gibb’s free ene…
· This article contains terms used in thermochemistry and their meaning. terms like enthalpy , entropy , system, intrisive variables, extrisive variables, exothermic and endothermic etc. …
This is defined as a measure of the degree of disorderliness or randomness of a system. Any spontaneous change in an isolated system must be accompanied by an increase in entropy. Systems having perfect order, i.e. pure cryst…
Enthalpy (H) is a property of a substance that can be used to obtain the evolved or absorbed in a chemical reaction. When a chemical reaction occurs, the total enthalpy (that is the total heat content) of the system changes and…
This article is basically discussing the conditions for any chemical reaction to occur. There are basically two conditions for effective collisions. They include: · The reacting particle must be properly orien…
Radioactivity is the disintegration of atomic nuclei with the spontaneous emission of particles and/or radiations. Investigations by scientists in the early 1900, particularly by Pierre and Marie curie led to the discovery that e…
