Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. What is Activation Energy?
Ans.
Colliding molecules which overcome the activation energy form an activated complex. In the activated complex, original bonds are partially broken, and new bonds are partially formed. The activated complex is unstable and may change to the products or back to the reactants.
For a reaction with low activation energy (see Ea' in above graph), a higher proportion of molecules will have the necessary energy. Hence the reaction rate will be faster. Conversely, for a reaction with high activation energy, reaction rate will be slower.
For example, let us consider the reaction NO2 + CO -> NO + CO2
There are two activation energies for this reaction, as shown in the graph below. Eaf is the activation energy for the forward reaction. Ear is the activation energy for the reverse reaction. In this reaction, the difference between Eaf and Ear is 226 kJ/mol and is called the heat of reaction.
The heat of reaction can also be defined as the difference between the heat content of the reactants and the heat content of the products.
The activation energy for a reaction is usually positive since there is an energy barrier to overcome.
Demonstrate the effect of foaming in preparation of cold and hot souffles? After undertaking this activity, you will be able to: • learn how to prepare hot and cold souffle,
Strengths of Phenols - Hydrocarbon The comparative strengths of some phenols (as acids) are like this: p-Nitrophenol > o-Nitrophenol > m- Nitrophenol > Phenol Presence of
Nitrogen Containing Compounds The important nitrogen consisting of organic compounds that are alkyl nitrites (RONO), nitro-alkanes (RNO 2 ), amines (- NH 2 ), aromatic nitro co
Which of the following expressions gives the de-Broglie relationship: (1) h= γ/ mv (2) γ= h/mv (3) γ=m/ mv
Addition catalysed by base - Aldehydes and Ketones In the existence of a base one equivalent of an alcohol reacts along with only one equivalent of the carbonyl compound. The p
Assignment is diagonal between berilium and aluminium
#questionthe extra Zn +2 ion are arising from wher? 2are they from their respective lattice site? 3pls provide animated videos for that..
Ratio of radii of second and first Bohr orbits of H atom: (1) 2 (2) 4 (3) 3 (4) 5 Ans: 4
how can i make a project work on it?
Because Mg is metal. We know from the properties of the metal it will mallable, ductile, and good conductor for electricity. So, for better conduction the conduction band must over
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd