What is chemical kinetics Class 12?
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What is chemical kinetics Class 12?
Chemical Kinetics is a branch of Chemistry which deals with chemical reaction, its factors and mechanism. It is closely related to the chemical reaction and physical process. Based on its varying rate, chemical kinetics Class 12 is divided into swift, prolonged and moderate reaction.
What is half life class 12 chemistry?
Half life reactions : The time elapsed in reduction of the concentration of a reactant participating in a chemical reaction to one half of its original concentration is called half-life reaction and is represented by t1/2.
What is rate of chemical reaction class 12?
Rate of Reaction Rate of a chemical reaction IS the change in the concentration of any one of the reactants or products per unit time. It is expressed in mol L-1 s-1 or Ms-1 or atm time-1 units.
What are elementary and complex reactions Class 12?
Elementary reaction means single reaction….Complete step by step answer:
| Complex reaction | elementary reaction |
|---|---|
| Series of transition states | One transition state |
| In some complex reactions products are not formed in steps directly involving the reactants | Products are formed directly from the reactants |
Is chemical kinetics an easy chapter?
Chemical Kinetics: This chapter is not only one of the easiest chapters, but also it is quite important because 2 other chapters are highly dependent on it – chemical equilibrium and electrochemistry. The whole chapter is about the rate law of a chemical reaction.
What is a zero-order reaction?
Definition of zero-order reaction : a chemical reaction in which the rate of reaction is constant and independent of the concentration of the reacting substances — compare order of a reaction.
What is the formula of half-life reaction?
The half-life of a reaction is the time required for the reactant concentration to decrease to one-half its initial value. The half-life of a first-order reaction is a constant that is related to the rate constant for the reaction: t1/2 = 0.693/k. Radioactive decay reactions are first-order reactions.
What is formula of rate of reaction?
Rate of reaction of A = increase in concentration/time interval = -Δ[A]/Δt.
What is the SI unit of reaction rate?
Reaction rates are usually expressed as the concentration of reactant consumed or the concentration of product formed per unit time. The units are thus moles per liter per unit time, written as M/s, M/min, or M/h.
What is difference between elementary and complex reaction?
An elementary reaction is a type of chemical reaction in which the reactants directly form the products. In contrast, a nonelementary or complex reaction is one in which intermediates form, which go on to form the final products.
Which is the easiest chapter in class 12th chemistry?
Organic Chemistry: This section is probably the easiest and comprises the most scoring portion of chemistry in class 12. Haloalkanes and Haloarenes, Alcohols, Phenols and Ethers and Aldehydes, Ketones and Carboxylic Acids are the most important chapters from Organic chemistry.
What are the units of half-life?
The units of half-life are time. The half-life is the length of time that it takes for half of an initial sample to undergo a change. Usually this is the radio-active decay of a specific atomic weight of an element.
