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

Bromination o vanillin, Ask qwhy is 5-bromovanillin the major productuestio...

Ask qwhy is 5-bromovanillin the major productuestion #Minimum 100 words accepted#

The sum of the orbital energies , Why is the total energy of a many-electro...

Why is the total energy of a many-electron atom not equivalent to the sum of the orbital energies for every electron?

Valence Electrons, why is the valence electron 4s2 in the elelment Sc21 an...

why is the valence electron 4s2 in the elelment Sc21 and not 3d1?

Determine the calories, The Calorie, used to express food heat values, is s...

The Calorie, used to express food heat values, is similar as a kilocalorie of heat energy . If you eat a chocolate bar from the United States with 600 Calories of food energy, how

Mordant dyes - classification of dyes, Mordant dyes: These dyes compri...

Mordant dyes: These dyes comprise no natural affinity for the fabric and are applied to it along with the help of specific additional substances termed as mordants. A mordant

Explain primary processing of cereals, Normal 0 false false ...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

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