Questions and Pages of Answers 1- What is the standard size unit used for petrol and how much gallons it equals? Page 5 2- Define what is petrol and how it formed? Page 5 3- In petrol reservoir what is under and above petrol layer? Page 5 4- What is impermeable rock? What can happen if the rock is permeable? Page 5 and 6 5- What is the relation between API unit and specific gravity (S.G)? Pages 6 and 7 6- If a petrol has high API value, what materials it indicates? Page 6 7- If a petrol has low API value, what materials it indicates? Page 6 8- How much Arabian Light Petrol has API, Specific gravity, Sulfur, and Nitrogen? Page 6 9- Write the equation that relate API with S.G and density ρ? Page 7 o 3 10- For a petrol having API = 133 , estimate its density ρ in (Kg/m )? Page 7 11- From Fig 3, what is the API that has the highest S and N? Page 7 12- From Fig 3, what is the API that has the lowest S and N? Page 7 13- If a petrol has high S and N is it good? And why? Page 10 14- Write the main chemicals in petroleum? Page 7 15- What is the general formula for Paraffin compound? Page 8 16- What are the chain types of Paraffin, write one example with a name for each type? Page 8 17- What is the relation between Molecular weight and boiling point? Page 9 o 18- Using Table 3, let our temperature is 40 C , what are the gas Paraffin and liquid ones? Page 9 19- What fusion point means? Page 9 20- If the room temperature is 10 Co, is Hexadecane (Table 4) solid or a liquid? Page 9 21- What is the saturated organic compound and what is the unsaturated? I mentioned in class, you search if you forget. 22- What is Aromatic give one example Pages 9 and 10 23- What is Naphthene and give example Pages 9 and 10 24- What is the difference beween Aromatic and Naphhene Page 9 25- What is denser Paraffin or Aromatic and Naphthene? Page 9 26- What is hetero-atomic compound and what is homo atomic with examples? Page 11 27- What is Olefin with examples? Pages 11and 12