PETROLEUM ENGINEERING - QUESTION 25.1 : Fact 1 : Dry air contains 20.95 % oxygen, 78.09 % nitrogen, 0.93 % argon, 0.039 % carbon dioxide, and small amounts of other gases by volume. Fact 2 : Volume occupied is directly proportional to the number of moles for ideal gases at constant temperature and pressure. Fact 3 : 12.5 moles of pure oxygen is required to completely burn 1 mole of pure octane. Fact 4 : Air-fuel ratio (AFR) is the mass ratio of dry air to fuel present in a combustion process such as in an internal combustion engine or industrial furnace. Fact 5 : Molecular weight of oxygen gas is 31.998 g / mole and molecular weight of nitrogen gas is 28.014 g / mole. (a) Find the molar ratio of nitrogen and oxygen, or (moles of nitrogen) / (moles of oxygen) in dry air, by assuming ideal features of nitrogen and oxygen gases. (b) How many moles of nitrogen are available if dry air is used to completely burn the 1 mole pure octane? (c) Find the mass of fuel of 1 mole of octane with molecular weight of 114.232 g / mole. (d) Find the mass of dry air with 12.5 moles of pure oxygen by assuming only oxygen and nitrogen gases exist in the air. (e) Find the air-fuel ratio (AFR) when octane is used as fuel. (f) Find the fuel-air ratio (FAR) when octane is used as fuel.
1 2205BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.5 : The following formula is used as a reference : (analyte signal) / (internal standard signal) = (f-factor) x (concentration of analyte) / (concentration of internal standard). A solution containing 3 mM of analyte and 4 mM of internal standard gave peak signals of 2 and 3 mamps respectively. Another similar solution containing 2 mM of analyte and 1 mM of internal standard gave peak signals of 1 and 4 mamps respectively. Find the average f-factor.
1 2007I applied for a B1/B2 visitor visa in May and went to lagos for the interview although i was going to attend a training programme( Faith internaqtional training school) which was going to last for 5 months. i stated i will be staying in the USA for 5 months and i never lost a passport and have not travelled within the last 5 years but i am married with a son working with the local government and salaRY #180,000 Had all the necessary documents to back up my claims yet i was denied under the 214b sectiion, was issued the blue paper and the VO didnot check any of my documents. I have rebook the appointment again for this month next week although made changes to my previous claim that i lost an old passport with three countries visas, GHANA, PORTUGAL , ROMANIA where i visited sometime ago and got a reissued passport which is not carrying any VISAS as at now and also stated that that i will be staying in the USA for only 10 days as my church which recomended me for the training expect to return after ten days of the spiritual enrichment programme to be ordained a pastor . Do you think my past record could be used against me and what are my chances for getting the Visa now going to the embassy at Abuja ????
1743Is it necessary after every journal entry to show its treatment in P&L a/c? Eg. if I am asked to show journal entry of purchasing furniture & fixture on 1st Aug 06, i.e. Furniture & fixture a/c Dr. To cash/bank a/c Along with this, I have to pass following journal entry on 31st Mar 07?? P&L a/c Dr. To Furniture & fixture a/c
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1501how to find the cement bags and sand requirements for the one square meter of internal,external,ceiling plastering by using the various ratios like 1:3,1:4,1:5,1:6
1445
Why does RNA have 5 bases and DNA has only 4?
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A short CI column of hollow circular section has projecting bracket carrying a load of 10 tonnes. The load line is off the column by 20cm. The external diameter of the column is 350mm and thickness of metal is 25 mm. Find the maximum stress intensity in the section.
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What popular journal did C. V. Riley and B. D. Walsh begin in 1868?
What popular journal did C. V. Riley and B. D. Walsh begin in 1868?
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