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.
Examples for the compound which is both doublesalt and complex compound? Ans) A Compound that is double salt cannot be a complex compound.
diamond is covalent.yet it has high melting point.why?
why phenol is acidic
positve deviation from beer''s law
Q. Explain the use Radioactive Nuclides? Ans. Radioactive elements are easily found because they emit radiation. They can be used as tracers to show what is happening in
(i) Use valence shell electron pair repulsion theory (VSEPR) to predict the shape of the molecule comprising oxygen, nitrogen and fluorine atoms, which has the formula ONF, and whe
Ask question #periodic properties #
What is basically Gibb''s free energy change? Ans) The energy associated with a chemical reaction that can be used to do work. The free energy of a system is the sum of its entha
Ciprofloxacin is used to fight bacterial infections.
K3[Al(C2O4)3]
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