Thermal Safety

Thermal stability

Thermal stability


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Cartes-fiches 17
Langue English
Catégorie Chimie
Niveau Autres
Crée / Actualisé 30.08.2020 / 26.03.2025
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What is the key concept describing stability of a chemical system?

TMRad

Reaction:

A -> B

What is the mathematical equation describing the kinetics of the reaction of n-th order?

 

Which equation describes the connection between the reaction rate and the temperature?

- Name of the equation

- Write down the equation and eplain all the terms

 

How do you call the "power" of the produced heat during the reaction?

How can you describe with the hepl of the reaction rate?

What is the differential equation describing it?

Power of the released reaction heat is referred to as heat release rate

In welcher form kann sonst noch Reaktionsgeschwindigkeit ausgedruckt werden?

Schreibe die entsprechende allgemeine Differenzialgleichung auf.

Wie sieht die DG fuer die reaktion 1. Ordnung aus?

Wie sieht die entsprechende DG bei der Verwendung von Perez-Benito Model aus?

durch welche DG wird die Temperatur des Systems ausgedruckt?

Wie heisst das auf Entlisch?

How can you determine Ea of a reaction with the help of isothermal DCS's?

Explain and write down all the relevant equations.

How do you calculate the TMRad?

Why was introduced the TMRad concept? What are its pros?

What are the rules of thumb for TMRad estimations based on a single DSC?

Explain the definitions:

Adiabatic

Isotherm

Explain the isoconversional method for TMRad determination: Very general with the corresponding three steps and the mathematic equations for calculation.

Now explain the isoconversional method in more detail the way I understand it.

Explain the isothermal TMRad determination method once again with the respective three steps and the plotted diagramm

Imagine you have only one single DSC experiment. How can you make use of it and roughly estimate the TMRad / TD24 ?

What are the cons of using the rules of thumb for estimating the TMRad from a single DSC experiment?

Explain the following terms:

- approx. isothermal

- dynamic DSC

- thermal conversion

- DTA

- What is the real world interpretation of the TMRad?

- What is the behavior typical to strongly autocatalytic systems?