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

Assignment Help:

 

 

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]

 

 

 


Related Discussions:- What is pseudo first order reaction? explain with examples.

Inner transition elements, why f-block elements are called inner transition...

why f-block elements are called inner transition elements?

Antipyretic - chemistry in action, Antipyretic: Antipyretic is a drug ...

Antipyretic: Antipyretic is a drug that is accountable for lowering the temperature of feverish object. The central nervous system, specifically the hypothalamus, takes an sig

boron- s block element , Boron The only nonmetallic element in group 13...

Boron The only nonmetallic element in group 13, boron has a strong tendency to covalent bonding. It's lonely complex structural chemistry arises from the (2 s )2(2 p )1 configur

Minimum reflux ratio for the separation, Crude oil is separated into severa...

Crude oil is separated into several fractions, each of these fractions are composed of many undefined hydrocarbon components. For simplicity, the crude oil is assumed to be a mixtu

Why are there never more than two electrons in an atomic orb, why are orbit...

why are orbitals occupied singly first befor the pairing of electron occurs

Stoichiometry, if 45.0 L of natural gas, which is essentially methane, unde...

if 45.0 L of natural gas, which is essentially methane, undergoes complete combustion at 730 mm Hg and 20 degrees Celsius, how many grams of each product are formed?

Name the chief ore of silver, Name the chief ore of silver. Explain with...

Name the chief ore of silver. Explain with chemical equations the extraction of silver from this ore.

The number of orbitals in d sub-shell is, The number of orbitals in d  sub...

The number of orbitals in d  sub-shell is : (1) 1        (2) 3        (3) 5        (4) 7 Ans: 5

Addition of grignard reagents and water, Addition of Grignard reagents: ...

Addition of Grignard reagents: Grignard reagents react along with carbonyl compounds to offer alcohols. Nature of alcohol lies on the nature of carbonyl compound. Addition o

Error check, verify that less than 5% of the reactants have been consumed

verify that less than 5% of the reactants have been consumed

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd