Entropy and free energy, Chemistry

Assignment Help:

 

Entropy (S) is a molecular 'disorder', or more precisely 'the number of microscopic arrangements of energy possible in a macroscopic sample'. Entropy depends strongly on the state and increases with rise in temperature.

Entropy changes (ΔS) are positive for reactions that generate gas molecules. The Second Law of Thermodynamics defines that the total entropy always increases in a spontaneous process, and reaches a maximum value at equilibrium. To apply this to chemical reactions it is necessary to include entropy changes in the surroundings caused by heat output or input. Both external and internal changes are taken account of by defining the Gibbs free energy change (ΔG): for a reaction performing at constant temperature.

 

 

 

2233_Untitled.png


Related Discussions:- Entropy and free energy

Show the properties of lithium aluminium hydride, Q. Show the properties of...

Q. Show the properties of Lithium Aluminium Hydride? Lithium aluminium hydride is much more useful than aluminium hydride. It is prepared in the laboratory by the action of LiH

Manufacturing process of glass, Q. Describe the manufacturing process of gl...

Q. Describe the manufacturing process of glass. Ans. Manufacturing process of glass 1.      Melting: Raw materials, in proper properties mixed with pellets, are finally po

Steric effect, steric effect affecting the end product of organic compound

steric effect affecting the end product of organic compound

How to know which compound is more stable, How to know which compound is mo...

How to know which compound is more stable if heat of formation values are given . Ans) Every compound tend to stay in lowest energy possible to be more stable, the less the energy

S block elements, write summarized report on s block elements characteristi...

write summarized report on s block elements characteristics and properties

Uses, Ask question #Minimuuses of nitoalkanem 100 words accepted#

Ask question #Minimuuses of nitoalkanem 100 words accepted#

Fatty acids distribution in trihydric alcohol, what is the pattern and mech...

what is the pattern and mechanism of fatty acid distribution in trihydri alcohol for triacylglycerol formation.

Show the electromagnetic radiation in spectrochemical series, Q. Show the e...

Q. Show the electromagnetic radiation in spectrochemical series? The spectrochemical series can sometimes be helpful in making certain prediction about the complex. For instanc

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