Science 30 January 1999 Grade 12 Diploma Examination

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Use the following information to answer the next question.Combustion of EthanolC 2 H 5 OH (l) + 3 O 2(g) 2 CO 2(g) + 3 H 2 O (g)32. Blended gasoline (E-85 ethanol) is a fuel containing 85% ethanol and 15%unleaded gasoline. The heat of combustion of ethanol isA. 857.4 kJ/molB. –151.7 kJ/molC. –1235.3 kJ/molD. –2299.4 kJ/molUse the following information to answer the next question.A Reaction at a RefineryH –H O H–=–C – C – C – OH + 3 H 2(g)––HHH –H H H–––C – C – C – H + 2 H 2O (g)–––HHHCompound X33. The functional groups present in Compound X make it possible to classifyCompound X as bothA. an ester and an alcoholB. a ketone and an alcoholC. an ester and a carboxylic acidD. a ketone and a carboxylic acid22
Use the following information to answer the next question.Amount of Fuel Consumed by Mode of TransportationMode ofTransportationNumber ofPeopleTravellingLitres of FuelUsed per100 kmLitres of Fuel Usedper 100 kmper Person1 car2 car3 van4 bus5 train6 jet126501 000100101020852 8001 120105.03.31.72.811.2Numerical Response10. Of the modes of transportation numbered above, the four most energy-efficient modesare _____, _____, _____, and _____.(Record your four-digit answer in any order in the numerical-response section on the answer sheet.)23
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Page 3 and 4: Multiple Choice• Decide which of
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Page 13: 15. Sparks from static electricity
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Page 18 and 19: 24. The use of pesticides may pose
Page 24 and 25: 31. Which of the following graphs r
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Page 34 and 35: Long Answer - 15%1. Many scientists
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Science 30 January 1999 Grade 12 Diploma Examination

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