combustion reactions and chemical reactions

) takes place with minimum wastage and pollution. For example, if an ideal fuel like LPG (high calorific value and relatively high amounts of branched hydrocarbons) is available, a sufficient and continuous supply of oxygen should be maintained to burn it. If the ignition spark or flame is sufficie..

Combustibility Sulphur dioxide gas is not combustible and ordinarily does not support combustion. The only exceptions are burning potassium or burning magnesium, which continue to burn in sulphur dioxid..

Sulphur dioxide gas is not combustible and ordinarily does not support combustion. The only exceptions are burning potassium or burning magnesium, which continue to burn in sulphur dioxide (Fig.7.5). The intense heat of the burning metals, decomposes the sulphur dioxide into sul..

Chemical Reactions - Chemical reactions are the processes in which new substances with new properties are formed. A chemical reaction should satisfy the following conditions: There must not be either a gain or loss of matter. There must be..

There are just 26 alphabets in English language, but the number of words are innumerable. You have studied about the 115 known elements and how they are classified for systematic and comprehensive study. Thousands of compounds are born by various chemical reactions involvi..

The electrons thus released move to the zinc rod via the external circuit. The ammonia gas so produced escapes. The hydrogen ions diffuse through the porous pot and interact with MnO 2 . (The charcoal powder makes MnO 2 electrically conducting.) Therefore, These positive charges are giv..

Rates of chemical reaction depends on the inherent characteristics or nature of the reactants. That is the reason, why some reactions are fast while others are slow. For E.g., oxidation of ferrous ion by KMNO 4 (potassium permanganate) in acidic medium is fast, ..

Aldehydes and Ketones are highly reactive compounds. They undergo similar reactions because of the presence of a carbonyl functional group in both of the..

When chemical reactions take place, energy is either absorbed or evolved. A reaction is said to be exothermic, if heat is 'evolved'. The heat energy produced during the reactions is indicated by writing + q or more precisely by giving the actual numerical val..

The burning of a substance is called combustion. It is an exothermic process (chemical reactions which give out heat to the surroundings are called exothermic reactions..