measurement of reaction rates

A balanced chemical equation represents the overall result of a chemical reaction. However, at the molecular level, more than one reaction step might be involved. Most reactions can be broken down into a sequence of elementary reactions. This breaking down of..

A parallel reaction is of the following type in which a reactant A transforms itself to two different products B and C. The rate expressions for the reactant and the products are, The solution to these equations are as follo..

. Energy is liberated in the form of heat, light and sound. Energy is liberated in the form electrical energy. The chemical reaction is instantaneous proceeding at a finite rate. This reaction takes place only on the application of electricity. Redox reactions..

>These reversible reactions never go to completion if performed in a closed container. For a reversible chemical reaction, an equilibrium state is attained when the rate at which a chemical reaction is proceeding in forward direction equals the rate..

Growth is a natural phenomenon, which occurs in both plants and animals. The growth in length of the plant is measured with the help of equipment called auxanometer or auxograph. An auxanometer is therefore an instrument used to measure the rate of growth of a plant w..

Definitions, postulates, reasoning, theorems Euclidean/non-Euclidean geometries Coordinate, transformational, axiomatic systems Conditional statements Properties of geometric figures Inductive/deductive reasoning Tessellations Pythagorean Theorem Coordinate systems Measurements..

Thus, chemical equilibrium may be defined as the state in which the measurable properties of the system (such as pressure, density, colour or concentration) do not undergo any further noticeable change under given set of conditions is said to be a state of equilibrium. When a reacti..

Suppose an element A disintegrates into another element B. Let number of atoms of A when t = 0 is N 0 . A undergoes continuous disintegration into B and hence the number of atoms of A goes on decreasing. Let the number of atoms of A left undisintegrated in time t be N If dN atoms of A disin..

Example: Dehalogenation of trimethyl methyl bromide (CH 3 ) 3 CBr is given by the reaction. The following data were obtained. time/h [(CH3)3 CBr] x 10 - 2 M Instantaneous Rate Ms-1 0 10.39 3.15 8.96 6.20 7.76 Rate at time = 6.5 hours ..

Hess's law is useful in calculating the enthalpies of many reactions whose direct measurement is difficult or impossibl..