Table of Contents
Can you suggest two reactions that are very fast?
Fast reactions Examples: Magnesium ribbon is burnt in the flame of Bunsen burner; it quickly gets combusted with a noticeable spark. Similarly, a neutralization reaction between acids and bases is a fast reaction. Example: When hydrochloric acid reacts with the base, ammonium hydroxide, it forms salt and water.
Which method is used to determine the rate of fast reaction?
The speed of relaxation is measured by a physical method such as spectroscopy, and analysis of the results leads to the reaction rate. The most common way of changing the external conditions is to change the temperature, and the method is called the temperature-jump, or T-jump, method.
Why fast reactions Cannot be monitored by conventional methods?
Fast reactions can be studied by flow systems. Those reactions which carried out in short span of time than the time required to mix up the reactants cannot be examined by conventional methods.
Is the slowest step in a reaction mechanism?
The slowest step in a reaction mechanism is known as the rate-determining step. The rate-determining step limits the overall rate and therefore determines the rate law for the overall reaction.
Why is rate limiting important?
Correct answer: The rate limiting step is providing the activation energy to get to the transition state, which is greatly decreased by an enzyme.
Can you suggest two reactions that are very slow?
slow reactions fast reactions rusting of iron burning of matchstick ripening of fruit explosion of TNT spoiling of milk neutralization of HCl with NaOH.
What is a slow reaction?
The slow reaction is defined as the reaction which takes longer time to complete. The slow reaction possesses a low rate of reaction. They possess higher activation energy. The example of slow reactions are rusting of a water pipe, a piece of newspaper turning yellow and so forth.
Which of the following factors does not affect the rate of a reaction?
Nature and concentration of the reactants and temperature of the reaction influence the rate of reaction. But molecularity does not affect the rate of reaction as it includes the number of atoms, ions or molecules that must collide with one another to result into a chemical reaction.
Why are some reactions very fast?
Reactions in phases that easily mix, such as gases and liquids, occur much faster than reactions between solids. The extent of mixing of the reactants influences the frequency of molecular collisions – if reactants are more thoroughly mixed, the molecules will collide more often and thus react faster.
What are fast and slow reactions?
The slow reaction is defined as the reaction which takes longer time to complete. The slow reaction possesses a low rate of reaction. The fast reaction is defined as the reaction which takes a shorter time to complete. The fast reaction possesses a high rate of reaction. They possess smaller activation energy.
Is it normal to have a slow reaction time?
However, if you are a healthy individual and still feel like you have a slow reaction time then that is something to worry about. Improved reaction time is better for both health and survival and you can rehabilitate your reaction time with a little effort and help.
How fast do chemical reactions occur at room temperature?
Thus reactions get very slow near absolute zero, and very fast at very high temperatures. At room temperature the reaction between hydrogen and chlorine is very slow. However if you shine the right wavelength of light it can go very fast. The reaction between hydrogen and oxygen is likewise very slow.
What is a slow chemical reaction called?
Slow reactions Chemical reactions that occur very slowly and can take a long time for completion are called slow reactions. Usually covalent compounds are involved in slow reactions. Some reactions can take days, weeks and months to complete; they are called very slow reactions.
Is reaction time different for different people?
However, there are still individual differences exist among people when it comes to the reaction time. If it occurs quickly the reaction time is quick for the person, and if the person takes more time to react to the stimuli then it has the slow reaction time.