Thermodynamic Principles of Metallurgy

Explain thermodynamic principles of metallurgy.

Draw a labelled diagram of electrolytic cell used for electrolysis of alumina. Write the chemical equations occurring in it.

Explain the following steps with chemical equations in the extraction of copper from copper pyrite ore:

Smelting.

Explain the following steps with chemical equations in the extraction of copper from copper pyrite ore:

Roasting.

What is meant by the term pyrometallurgy?

In the thermite process _____ is used as a reducing agent.

According to the signs of ${∆}_{\mathrm{r}}{\mathrm{G}}^{°}$ for the following reactions: 

${\mathrm{PbO}}_2+\mathrm{Pb}\to 2\mathrm{PbO}, {∆}_{\mathrm{r}}\mathrm{G}°<0$

${\mathrm{SnO}}_2+\mathrm{Sn}\to 2\mathrm{SnO}, {∆}_{\mathrm{r}}\mathrm{G}°>0$

What is the more characteristic oxidation states for lead and tin?

The choice of a reducing agent in a particular case depends on its thermodynamic factor. How do you agree with this statement?

In which of the following reactions, standard reaction entropy change $\left(\mathrm{\Delta S}°\right)$ is positive and standard Gibb's energy change $\left(\mathrm{\Delta G}°\right)$ decreases sharply with increasing temperature?

In the extraction of copper from its sulphide ore the metal is formed by reduction of ${\mathrm{Cu}}_2\mathrm{O}$ with

In which of the following reactions, standard reaction entropy change $\left(\mathrm{\Delta S}°\right)$ is positive and standard Gibb's energy change $\left(\mathrm{\Delta G}°\right)$ decreases sharply with increasing temperature?

Identify the reaction that does not take place in a blast furnace:

In view of the sign of${∆}_{\mathrm{r}}\mathrm{G}°$ for the following reactions :
${\mathrm{PbO}}_2+\mathrm{Pb}\to 2 \mathrm{PbO}; {∆}_{\mathrm{r}}\mathrm{G}°<0$
${\mathrm{SnO}}_2+\mathrm{Sn}\to 2\mathrm{SnO}; {∆}_{\mathrm{r}}\mathrm{G}°>0$ 
Which oxidation states are more characteristic for lead and tin ?

Heating ${\mathrm{Cu}}_{2}0$and ${\mathrm{Cu}}_2\mathrm{S}$ will give:

Calamine, malachite, magnetite and cryolite, respectively are:

Which of the following graph represents correctly the variation in thermodynamic functions during th formation of a binary solution showing positive deviators from ideal behavior?

In the extraction of copper from its sulphide ore the metal is formed by reduction of ${\mathrm{Cu}}_2\mathrm{O}$ with

The purest zinc is made by

Cotyledons are also called-

The metal oxide reacts with a ______. The oxide is ______ to metal and reducing agent is ______. Net Gibb's energy change is ______.