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Ellingham diagram

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Ellingham diagram

Posted by Md Ataullah 7 years, 4 months ago

CBSE > Class 12 > Chemistry

4 answers

Asim Khan 7 years, 4 months ago

We know ΔG° = ΔH° - TΔS° The characteristics of Elingham diagram are: i. Based on 2nd law of thermodynamics ii. It is a plot of Standard free energy of formation of various oxides and temperature So, the slope of the line gives -ΔS° i.e. entropy change and intercept gives the value of ΔH°. iii. A metal found in the Ellingham diagram act as a reducing agent for the metallic oxide. A substance whose formation enthalpy at given T, will reduce one whose formation of enthalpy is higher on diagram. iv. Intersection of two lines imply the equilibrium of oxidation and reduction reactions between two substances. Hope it helps!! Best wishes..

Shalini Singh 7 years, 4 months ago

For bio savart law

Shalini Singh 7 years, 4 months ago

Sorry for this

Shalini Singh 7 years, 4 months ago

According to biot savart law , the magnitude of the field dB is i) directly proportional to the current I ii)directly Proportional to the length dl iii)directly Proportional to sin α iv)inversly Proportional to the square of the distance r dB= K Idl sinα/r2

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