07/25/2023 H V. Desai College Pune-2 1
Dr. Heena V Sanghani
H.V. Desai college Pune
Exploring Chemistry in Future
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Learning Chemistry career in Chemistry Live in your Passion Effective communication Critical thinking Better decision making Knowledge of It and technology Research and presentation Detailed Analysis Observation skills Problem-solving Time management Monitoring records and data Teamwork Now the best way to begin your career in the chemistry or science sector is to take up an internship initially. Many companies hire students or freshers as interns. Also, you need to check for organizations that offer you paid internships.
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Dr. Heena V Sanghani
H.V. Desai college Pune
Exploring Chemistry in Future
June 10, 1990:
What had happened…..
- (^) Accident investigators discovered that when the windscreen had been refitted to the plane the night before, the wrong bolts had been used to secure it; they were little more than half a mm too small, and had failed under intense air pressure.
- (^) The bolts had actually replaced other incorrect ones; the engineer, working under pressure and without reference to manuals, had simply replaced the old bolts with new ones on a like-for- like basis.
- (^) As a result of the incident, windscreens on British Airways planes are now secured by bolts on the inside of the plane, rather than the outside, putting them under even less pressure.
Chernobyl
First Reason
- (^) One of the most crucial causes of the accident is the large positive void coefficient possessed by the nuclear reactor. One characteristic of the RBMK reactor is that it can have a positive void coefficient. This means that an increase in voids or steam bubbles is associated with a rise in core reactivity.
- Most other reactor designs have a negative coefficient, which means that the reactor responds to the formation of steam bubbles by decreasing heat output. This is because if the coolant contains lots of steam bubbles, fewer neutrons are slowed down. The faster neutrons are, in turn, less likely to cause fission of the uranium atoms, thus resulting in a lower power output.
- This is an example of negative feedback that is used to prevent the reactor's heat output from reaching dangerously high levels. However, the RBMK reactor used had a positive coefficient, which means that the reactor becomes very unstable at low power levels, and vulnerable to dangerous rises in energy production levels. This was one of the reasons for the reactor explosion during the Chernobyl accident.
All the things in the world happen due to Atoms
Molecules & Chemical and biochemical reactions.
- Be Ready to explore the world of chemistry
- (^) Never stop yourself from doing it as it is very interesting and it makes the life of humans into existence
Chemistry
- (^) Analytical Chemist
- (^) Pharmacologist:
- (^) Chemistry Teacher
- (^) Forensic Scientist
- (^) Geochemist
14
Contd…
- (^) Hazardous Waste Chemist: Hazardous waste chemists deal with the management and safe relocation of hazardous materials. They use their expertise to identify harmful chemical components in the air, water or soil, evaluate the danger they present and coordinate their removal and containment.
- (^) Materials Scientist: Materials scientists study man-made and natural substances to determine their properties, composition and how they could be transformed or combined to increase effectiveness or create new materials. By analyzing and experimenting with existing materials, materials scientists are able to enhance the way they are used and create new materials to better serve humanity’s needs.
- (^) Toxicologist: Toxicologists, like pharmacologists, study the effects of drugs on biological systems. See effects of other substances natural and man-made. They work with and develop methodologies for determining harmful effects of substances and judge correct dosages and therefore avoid them. Both pharmacology, toxicology roles are lab-based and involve the monitoring of experiments and interpretation of results.
- (^) Water Chemist: Water chemists, as the name suggests, are concerned with analyzing and maintaining the quality and condition of water, essential for human life on Earth. This is a highly interdisciplinary field, so as well as chemistry you may also need knowledge of linked fields such as microbiology and geology. Person is called hydrologist or hydro geologist. 07/25/ H V. Desai College Pune-
- (^) Cosmetic Chemist:
- (^) Marine chemist:
- (^) Agricultural chemist:
- (^) Synthetic Chemist
- (^) Astronaut chemist:
Position
- (^) Developer
- (^) Group Leader
- (^) Investigator
- (^) Manager/ Lab Manager/Project Manager
- (^) President/CEO
- (^) Research Scientist
- (^) Senior Scientist/Junior Research Fellow
- (^) Technician in any chemical industry
- (^) Formulation chemical industry:
- (^) Technical support Manager
- (^) Chemical information management specialist/Officer
- (^) Process Manager chemical industry:
Principal Vice Principal Teachers My Dear students & Friends