IB Chemistry Extended Essay

소개글

"IB Chemistry Extended Essay"에 대한 내용입니다.

목차

1. Introduction
2. Hypothesis
3. Background Information
4. Variables
5. List of Equipment
6. Procedure
7. Raw Data
8. Qualitative Data
9. Processed Data
10. Calculation of Random Error
11. Conclusion
12. Evaluation

본문내용

When I learned about catalysts in chemical kinetics chapter in class, I was fascinated by the fact that catalysts are used in various areas such as catalytic converter in a car and iron catalyst in the Haber process. In class, I learned that hydrogen peroxide(H2O2) decomposition can be sped up by the use of catalysts. Catalysts provide a different energy pathway with a lower activation energy for a hydrogen peroxide molecule to decompose to water and oxygen gas. For instance, in our body, H2O2(aq) is produced in white blood cell to protect our bodies from bacteria, and its decomposition is catalyzed by a catalyst called catalase.

2H2O2(aq)→ 2H2O(l) + O2(g) (Catalase functions as catalyst)

The reaction above made me wonder whether other catalysts besides catalase can be used to speed up the decomposition of hydrogen peroxide. The initial investigation that I planned to conduct was the effect of different transition metals on the rate of hydrogen peroxide decomposition.

참고 자료

“Catalysis: Meaning, Types and Their Characteristics, Role of Adsorption.” Redefining Knowledge, 30 Aug. 2018, hemantmore.org.in/foundation/science/chemistry/applications-adsorption-catalysis/3712/.
“Hydrogen Peroxide Health & Safety Tips.” MSDSonline, 17 June 2015, www.msdsonline.com/2015/06/17/hydrogen-peroxide-health-safety-tips/
“Lead Dioxide.” National Center for Biotechnology Information. PubChem Compound Database, U.S. National Library of Medicine, pubchem.ncbi.nlm.nih.gov/compound/lead_dioxide#section=Accidental-Release-Measures.
“2.3.2 (h) Interpret the Catalytic Behaviour in (e), in Terms of the Boltzmann Distribution;” OCR Science A Level Help, 2 June 2015, sciencealevelhelp.co.uk/?p=802.