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How Zinc Carbonate Breaks Down with Gibbs Free Energy!

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Aasiyah Rahman

05/04/2023

Chemistry

Phyisical Chemistry- Thermodynamics, Gibbs free energy

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Chemistry

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Physical chemistry

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Thermodynamics (a-level only)

How Zinc Carbonate Breaks Down with Gibbs Free Energy!

A comprehensive guide to Gibbs free energy feasibility calculation and thermodynamics enthalpy entropy reaction concepts, focusing on determining reaction feasibility through temperature variations.

  • Gibbs free energy (ΔG) serves as the key indicator for reaction feasibility, calculated using enthalpy (ΔH) and entropy (ΔS)
  • Reactions are considered feasible when ΔG is negative, while positive values indicate non-feasibility
  • Temperature plays a crucial role in determining reaction feasibility, with reactions often being feasible only within specific temperature ranges
  • The zinc carbonate decomposition temperature range demonstrates practical application of these principles
  • Understanding spontaneity versus feasibility helps distinguish between theoretical possibility and practical occurrence
...

05/04/2023

86

Thermodynamics 6 Gibbs Free Energy KJ MOI" KJ mol" k K AGAH-TAS Change in Gilolos free charge energy find as; enthalpy temp entropy Chorge f

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Page 2: Temperature Effects on Reaction Feasibility

This page explores how temperature affects reaction feasibility through various combinations of enthalpy and entropy values, using the decomposition of zinc carbonate as a practical example.

Example: The decomposition of zinc carbonate ZnCO3ZnCO₃ to zinc oxide ZnOZnO and carbon dioxide CO2CO₂ demonstrates how temperature influences reaction feasibility.

Highlight: Different combinations of positive and negative ΔH and ΔS values lead to distinct temperature-dependent feasibility patterns.

The page presents a comprehensive table showing how ΔG varies with temperature under different conditions, providing a clear framework for predicting reaction feasibility at various temperatures.

Thermodynamics 6 Gibbs Free Energy KJ MOI" KJ mol" k K AGAH-TAS Change in Gilolos free charge energy find as; enthalpy temp entropy Chorge f

View

Page 3: Practical Calculations and Applications

This page focuses on practical calculations involving Gibbs free energy and determining specific temperature ranges for reaction feasibility.

Definition: The transition temperature whenΔG=0when ΔG = 0 marks the point where a reaction switches between feasible and non-feasible states.

Example: Calculations show that the zinc carbonate decomposition becomes feasible above 411K, demonstrating the practical application of these principles.

Highlight: The melting point of substances represents a specific case where ΔG = 0, marking the transition to feasibility for the melting process.

The page provides detailed mathematical procedures for calculating transition temperatures and analyzing feasibility at specific temperatures.

Thermodynamics 6 Gibbs Free Energy KJ MOI" KJ mol" k K AGAH-TAS Change in Gilolos free charge energy find as; enthalpy temp entropy Chorge f

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Subjects

Chemistry

Physical chemistry

Thermodynamics (a-level only)

 

Chemistry

•

86

•

5 Apr 2023

•

4 pages

How Zinc Carbonate Breaks Down with Gibbs Free Energy!

user profile picture

Aasiyah Rahman

@aasiyahrahman

A comprehensive guide to Gibbs free energy feasibility calculation and thermodynamics enthalpy entropy reaction concepts, focusing on determining reaction feasibility through temperature variations.

  • Gibbs free energy (ΔG) serves as the key indicator for reaction feasibility, calculated using enthalpy (ΔH) and... Show more

Thermodynamics 6 Gibbs Free Energy KJ MOI" KJ mol" k K AGAH-TAS Change in Gilolos free charge energy find as; enthalpy temp entropy Chorge f

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Page 2: Temperature Effects on Reaction Feasibility

This page explores how temperature affects reaction feasibility through various combinations of enthalpy and entropy values, using the decomposition of zinc carbonate as a practical example.

Example: The decomposition of zinc carbonate ZnCO3ZnCO₃ to zinc oxide ZnOZnO and carbon dioxide CO2CO₂ demonstrates how temperature influences reaction feasibility.

Highlight: Different combinations of positive and negative ΔH and ΔS values lead to distinct temperature-dependent feasibility patterns.

The page presents a comprehensive table showing how ΔG varies with temperature under different conditions, providing a clear framework for predicting reaction feasibility at various temperatures.

Thermodynamics 6 Gibbs Free Energy KJ MOI" KJ mol" k K AGAH-TAS Change in Gilolos free charge energy find as; enthalpy temp entropy Chorge f

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Page 3: Practical Calculations and Applications

This page focuses on practical calculations involving Gibbs free energy and determining specific temperature ranges for reaction feasibility.

Definition: The transition temperature whenΔG=0when ΔG = 0 marks the point where a reaction switches between feasible and non-feasible states.

Example: Calculations show that the zinc carbonate decomposition becomes feasible above 411K, demonstrating the practical application of these principles.

Highlight: The melting point of substances represents a specific case where ΔG = 0, marking the transition to feasibility for the melting process.

The page provides detailed mathematical procedures for calculating transition temperatures and analyzing feasibility at specific temperatures.

Thermodynamics 6 Gibbs Free Energy KJ MOI" KJ mol" k K AGAH-TAS Change in Gilolos free charge energy find as; enthalpy temp entropy Chorge f

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Thermodynamics 6 Gibbs Free Energy KJ MOI" KJ mol" k K AGAH-TAS Change in Gilolos free charge energy find as; enthalpy temp entropy Chorge f

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Page 1: Understanding Gibbs Free Energy

This page introduces the fundamental concepts of Gibbs free energy and its relationship to reaction feasibility. The equation ΔG = ΔH - TΔS forms the cornerstone of determining whether reactions can occur spontaneously.

Definition: Gibbs free energy ΔGΔG is a thermodynamic quantity that determines reaction feasibility, combining both enthalpy and entropy effects.

Highlight: A negative ΔG indicates a feasible reaction, while a positive ΔG indicates a non-feasible reaction.

Vocabulary: Spontaneous reactions are those that are thermodynamically feasible but may still require activation energy to proceed.

The page emphasizes the importance of unit conversions, particularly from kJ to J multiplyingby1000multiplying by 1000 and the significance of temperature in determining reaction feasibility.

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This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

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