Thermodynamic Principles Of Metallurgy
Chapter Name : General Principles And Processes Of Isolation Of Elements |
Sub Topic Code : 102_12_06_05_01 |
Topic Name : Thermodynamic Principles Of Metallurgy |
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Sub Topic Name : Thermodynamic Principles Of Metallurgy |
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Introduction
• Change in Gibbs energy, ?G for any process at any specified temperature, is described by the equation: ?G = ?H – T?S • A negative ?G implies a +ve K in and this can happen only when reaction proceeds towards products. • The reducing agent forms its oxide when the metal oxide is reduced. • The role of reducing agent is to provide ?G? negative and large enough to make the sum of ?G? of the two negative.
Pre-Requisites:
Metals, Metallurgy, thermodynamics
Real Life Question:
How are metals like Iron extracted from their ores?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Metallurgy | • Metallurgy is the method involving the extraction of metals from their ores. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Iron rod, Copper wire | All these metals used to make different objects have originally been extracted from their ores. |
Real life uses :
Extraction of metals from their ores.
Places to visit :
Garage.
Practical examples around us
| Examples | Explainations |
|---|---|
| Iron rod, copper wire | • Metals used to make different objects have been extracted from their ores. |
What you learn in Theory:
• Change in Gibbs energy, ?G for any process at any specified temperature, is described by the equation: ?G = ?H – T?S • A negative ?G implies a +ve K in and this can happen only when reaction proceeds towards products. • The reducing agent forms its oxide when the metal oxide is reduced. • The role of reducing agent is to provide ?G? negative and large enough to make the sum of ?G? of the two negative.
What you learn in Practice:
• Thermodynamic principles play a major role in extracting metals from their ores.