- #1
EIRE2003
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Why do some substances react with other while others do not?
How fast does a chemical reaction occur?
How fast does a chemical reaction occur?
Chemical Reactions: Understanding Substances and Reaction Rates
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SUMMARY
This discussion focuses on the factors influencing chemical reactions and their rates. It highlights that substances react based on their phases, with reactions occurring at interfaces when one is solid and the other is liquid. Ahmed Zewail's work in femtochemistry has demonstrated that molecular reactions can occur in as little as 10^-15 seconds. Reaction rates are specific to each reaction and depend on temperature, concentration of reactants, the nature of the reactants, and the presence of catalysts.
PREREQUISITES- Understanding of chemical phases (solid, liquid, gas)
- Familiarity with reaction kinetics
- Knowledge of catalysts and their role in chemical reactions
- Basic principles of femtochemistry
- Research the principles of reaction kinetics in detail
- Explore the role of temperature in chemical reaction rates
- Study the impact of catalysts on reaction mechanisms
- Learn about femtochemistry techniques and their applications
Chemistry students, researchers in chemical kinetics, and professionals interested in the dynamics of chemical reactions.
- #2
chem_tr
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This is a very general question 
Well, some react with others since they are in the same phase; some of them don't, because they are in solid form while the other is liquid therefore they cannot combine. In such cases, we only expect that the reaction occurs at the interfaces.
About reaction rates, since it is in a molecular basis, it is unpredictably fast; but Ahmed Zewail has managed to catch "molecules" via femtochemistry. You can understand that the rates are as fast as 10-15 s.
Well, some react with others since they are in the same phase; some of them don't, because they are in solid form while the other is liquid therefore they cannot combine. In such cases, we only expect that the reaction occurs at the interfaces.
About reaction rates, since it is in a molecular basis, it is unpredictably fast; but Ahmed Zewail has managed to catch "molecules" via femtochemistry. You can understand that the rates are as fast as 10-15 s.
- #3
Sirus
- 571
- 2
EIRE2003 said:
There is a whole section of chemistry called reaction rates. Reaction rates are entirely specific to each reation. They depend on a number of things, among others temperature, concentration of reactants, nature of the reactants, and presence or absence of a catalyst.
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