Why is the extraction of copper from pyrites is difficult?, Chemistry

Assignment Help:

Q)why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction?

Ans) The Standard free energy of formation of Cu2S is greater than those of CS2 & H2S .Hence , niether carbon nor hydrogen can reduce Cu2S to Cu metal. On the other hand , standard free energy of formation of Cu2O is much lower than that of CO2 & hence , carbon can easily reduce Cu2O to Cu. Cu2O+C (s) -> Cu(s) +CO(g)


Related Discussions:- Why is the extraction of copper from pyrites is difficult?

What is si unit of energy?, Q. What is SI unit of energy? Ans. The S...

Q. What is SI unit of energy? Ans. The SI unit of energy is called the joule. A joule is a pretty small mount of energy so often chemists will use the unit kJ =1 kilojoule

Nylon (polyamides), Nylon (polyamides): S ynthetic fibre forming polyamides...

Nylon (polyamides): S ynthetic fibre forming polyamides are also termed as Nylons. Therefore, Nylon is well known in the textiles. Nylons are those polymers which contains a repeat

Blow moulding and thermoforming extensively, write on blow moulding and the...

write on blow moulding and thermoforming extensively. 3 pages

G.o.c, What is inductomeric effect with example and what is difference betw...

What is inductomeric effect with example and what is difference between inductive and inductomeric effect

Complexation behaviour of group 13, Q. Complexation Behaviour of Group 13? ...

Q. Complexation Behaviour of Group 13? As compared to the elements of Groups 1 and 2, elements of Group 13 show a greater tendency of complex formation. Because of lack of d-or

Carbon, in which state carbon exist

in which state carbon exist

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