What is pseudo first order reaction? explain with examples., Chemistry

 

 

The order of a reaction is occasionally changed by conditions. Consider a chemical reaction between two substances where one reactant is there in large excess. During the hydrolysis of 0.01 mol of ethyl acetate with 10 ml of water, amounts of the various constituents at the beginning (t = 0) and complexion (t) of the reaction are given as under
                               
2014_Untitled.png 

The concentration of water does not get altered much during the course of the reaction.

So, in the rate equation

Rate = k’ [CH3COOC2H5] [H2O]

The term [H2O] can be taken as constant. The equation, thus, becomes

Rate = k [CH3COOC2H5]

Where k = k’ [H2O]

And the reaction behaves as first order reaction. Such reactions are called pseudo first order reaction.

Conversion of cane sugar is one more pseudo first order reaction.

815_Untitled.png 

Rate = k [C12H22O11]

 

 

 

Posted Date: 6/25/2012 6:30:41 AM | Location : United States







Related Discussions:- What is pseudo first order reaction? explain with examples., Assignment Help, Ask Question on What is pseudo first order reaction? explain with examples., Get Answer, Expert's Help, What is pseudo first order reaction? explain with examples. Discussions

Write discussion on What is pseudo first order reaction? explain with examples.
Your posts are moderated
Related Questions
Define the both - Direct extrusion and Indirect extrusion Direct extrusion: Billet is placed in a container and forced through the die by a piston. Indirect extrusion:

Radioanalytical methods: Radioanalytical methods using radiotracers and activation analysis are more sensitive and specific because of ease of detection of nuclear radiation.

obtain the mole of substance in the following. 7.05g Br2

Explain DTA

Explain and Define standard feat of formation Ans) The amount of heat liberated of absorbed when single mole of compound is formed in its standard state from its elements in the

why are aromatic nitro compounds pale yellow in colour


How many fluorescence photons will really be detected on average by the photo detector during a 10 ms acquisition window if one diIC12 molecule is located in the illuminated area?

What is the effect of the various concentrations of aniline hydrochloride on the ph and the X value, and what''s the logic behind all this