Reaction Kinetics: Heterogenous vs Homogenous - 65 Characters

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SUMMARY

Heterogeneous reactions generally occur at different rates compared to homogeneous reactions, influenced by factors such as temperature, concentration, and the nature of reactants and catalysts. Surface area is a critical factor in heterogeneous reactions, while the states of matter (aqueous, gas, liquid, solid) also play a significant role in reaction kinetics. The discussion highlights a specific question regarding the slowest reaction at room temperature among four given options, emphasizing the importance of understanding reaction types and conditions.

PREREQUISITES
  • Understanding of reaction kinetics
  • Familiarity with heterogeneous and homogeneous reactions
  • Knowledge of Hess's Law
  • Basic concepts of states of matter (aqueous, gas, liquid, solid)
NEXT STEPS
  • Research the impact of surface area on heterogeneous reactions
  • Study the principles of Hess's Law in detail
  • Explore the differences in reaction rates between heterogeneous and homogeneous systems
  • Investigate the role of catalysts in chemical reactions
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Chemistry students, researchers in reaction kinetics, and professionals involved in chemical engineering or catalysis will benefit from this discussion.

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would reactions happen faster in heterogenous rxns or in homogenous? also, i was wondering if i am correct in assuming that heterogenous & homogenous reactions affect: temp, concentration, nature of reactants and catalysts? only surface area affects heterogenous.

for this question, would u look at the states: aq>g>l>s ? or whether it is heterogenous/homogenous?
1. Which of the following reactions is the slowest at room temperature?



A. Zn(s) + S(s) → ZnS(s)

B. Ba2+(aq) + SO42-(aq) → BaSO4(s)

C. NH3(g) + HCl(g) → NH4Cl(g)

D. 2 Ag+(aq) + CO32-(aq) → Ag2CO3(s)
 
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try to be a bit more clear when asking questions
also, i was wondering if i am correct in assuming that heterogenous & homogenous reactions affect: temp, concentration, nature of reactants and catalysts? only surface area affects heterogenous.
what on Earth are you trying to say?

Think about how reactions would proceed in light of hess' law. How would reaction A) occur, what type of reaction is it?
 

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