spontaneous reactions can be slow

Introduction - Electrochemistry is a branch of chemistry, which deals with the relationship between electrical energy and chemical changes taking place in redox reactions. i.e., how chemical energy or how electrical energy can be used to bring about a redox reaction which is oth..

We observe various chemical processes in our daily life. It is a common observation that the rates of these chemical reactions vary and depend on certain factors. The knowledge of the rate of a reaction is of importance in industries to ensure optimum productivity. An industrial..

When the stimulation of a receptor results in a spontaneous, involuntary reaction, it is called reflex action or simply reflex. Reflexes are of two types: Simple or unconditioned or natural reflex Complex or conditioned refl..

Reflex Action - When the stimulation of a receptor results in a spontaneous, involuntary reaction, it is called reflex action or simply reflex. Reflexes are of two types: Simple or unconditioned or natural reflex Complex or conditioned refl..

Hydrogen chloride gas can be prepared by the direct combination of hydrogen gas and chlorine gas in the presence of sunlight. The reaction is explosive in direct sunlight. However, in diffused sunlight the reaction is slow and controllable. In the dark, the reacti..

(ii) The neutrons can be absorbed by substances which are not fissionable. Rods of boron or cadmium have the ability to absorb the desired number of neutrons. This ensures limited number of neutrons to be available for fission. (iii) The speed of the neutrons can be slowed down appropria..

The first law of thermodynamics is concerned with the conversion of energy from one form to another. It helps us to understand energy transformation in different chemical reactions. The basic point of the first law is that all physical and chemical processes take place in such a man..

Potassium, sodium and calcium combine very vigorously with cold water and even ice cold water, to form the respective hydroxide and hydrogen. The reaction with potassium is so vigorous that the hydrogen liberated catches fire spontaneously. The chemical equations for the above h..

The discovery of the phenomenon of radioactivity was purely accidental. In 1896, Henry Becquerel, a French scientist accidentally found that in presence of salt of uranium, photographic plates got heavily fogged even though they were wrapped in opaque paper. He concluded that the uranium salt must ..

This occurs in reactions where the reaction rate increases as a product is formed. An example of autocatalystic reaction is the Belousov-Zhabotinskii (BZ) reaction. The product HBrO 2 is the reactant in step I. Another example of autocatalysis is the rea..