Sce 201: Introduction To Environmental Chemistry Regular Programme Question Paper
Sce 201: Introduction To Environmental Chemistry Regular Programme
Course:Bachelor Of Science In Industrial Chemistry
Institution: University Of Nairobi question papers
Exam Year:2017
SCE 201: INTRODUCTION TO ENVIRONMENTAL CHEMISTRY REGULAR PROGRAMME
CAT1 2017/2018
SUBMIT BY 12TH FEBRUARY 2018
INSTRUCTIONS
Answer ALL Questions (100 Marks)
QUESTION ONE (25 MARKS)
1) With the help of appropriate equations discuss the main types of chemical weathering. 2) Discuss the factors that influence physical weathering. 3) Illustrate the main redox reactions in aquatic chemistry.
QUESTION TWO (25 MARKS)
a) Using SO2, CO2 and NO2, discuss the chemistry of rain water acidification. b) What is the expected rain pH under each circumstance? Show the equilibrium chemistry and calculations involved. c) Describe the challenges associated with acid rain. d) Describe natural sources of atmospheric acidification.
QUESTION THREE (25 MARKS)
a) What is environmental radioactive pollution? b) Discuss natural and anthropogenic sources of radioactivity. c) Describe radionuclides application in medicine and industry.
QUESTION FOUR (25 MARKS) a) Describe the chemistry of the biosphere with respect to nitrogen, oxygen and carbon cycles. Show appropriate diagrams and reactions. b) Explain the meaning of eutrophication. c) How can you determine the limiting factors in eutrophication?
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