Reference no: EM13752095
1. Answer ALL parts of this question.
a) The Universal Gas Constant is 8.314 J mol-1 K-1. Express this value in units of atm·ft3 (lb-mol)-1 °R-1. [4 marks]
b) A fuel with a composition 89 mol% methane, 7 mol% ethane and 4 mol% carbon dioxide is supplied to a boiler at a temperature of 68ºF and a gauge pressure of 98 mm Hg. Determine:
(i) the composition of the fuel in % w/w, [4 marks]
(ii) the average molecular weight of the fuel, [4 marks]
(iii)the theoretical air required to burn the fuel (in kg of air per m3 of fuel), if the atmospheric pressure is 754 mm Hg, [7 marks]
(iv)the composition of the flue gas in mol% if the fuel is burned with 30% excess air, assuming complete combustion. [6 marks]
c) Mesitylene (trimethyl-benzene) can be reduced by reaction with hydrogen to produce xylene (dimethyl-benzene) with methane generated as a by-product. Unfortunately, valuable xylene can be further reduced by hydrogen to the less valuable toluene (methyl-benzene), again producing methane as a by-product. A reactor feed contains 40 mol% mesitylene and 60 mol% H2. If the conversion of mesitylene is 60% and the selectivity is 2.2, determine the composition of the product leaving the reactor and the yield. [15 marks]
DATA:
1 atm = 1.013 ×105 N m-2
1 m3 = 35.31 ft3
1 mol (g-mol) = 2.205×10-3 lb-mol
1 N m-2 = 7.50×10-3 mm Hg
T(ºF) = 1.8 T(ºC) + 32
T(K) = T(ºC) + 273
T(ºR) = T(ºF) + 459
The ideal gas constant R = 8.314 J mol-1 K-1.
Assume air has a composition of 79 mol% N2 and 21 mol% O2.
Relative atomic mass: C=12.0, H=1.0, O=16.0 and N=14.0.
|
A liquid-solid slurry containing 9.0%w/w sodium
: An aqueous solution containing 7%w/w of sodium carbonate is fed to the reactor at a rate of 100 kg min.1, where it mixes with a gas stream containing 70 mol% CO2 and 30 mol% air. All of the sodium carbonate in the feed reacts to form sodium bicarbona..
|
|
Interest on the bonds is payable semiannually
: On February 28, 2009, $5,000,000 of 6%, 10-year bonds payable, dated December 31, 2008, are issued. Interest on the bonds is payable semiannually each June 30 and December 31. If the total amount received (including accrued interest) by the issuing c..
|
|
Determines that the balance in the valuation account
: At the end of the prior year, Fox Inc. had a deferred tax asset of $10,000,000 attributable to its only timing difference, a temporary difference $50,000,000 in a liability for estimated expenses. At the time a valuation allowance of $4,000,000 was e..
|
|
What is the annual distribution cost
: What is the annual distribution cost of the current distribution network? Include transportation and inventory costs.
|
|
A fuel with a composition 89 mol% methane
: a) The Universal Gas Constant is 8.314 J mol-1 K-1. Express this value in units of atm·ft3 (lb-mol)-1 °R-1 b) A fuel with a composition 89 mol% methane, 7 mol% ethane and 4 mol% carbon dioxide is supplied to a boiler at a temperature of 68ºF and a g..
|
|
Define most recognized delivery structures of ipd programs
: Define the most recognized delivery structures of IPD programs and suggest one alternative that is gaining popularity. Which of the above IPD is used primarily in the public realm, and present your summary of why
|
|
Calculate the amount of net income reported
: ABC Company employs a periodic inventory system and sells its inventory to customers for $32 per unit. ABC Company had the following inventory information available for the month of May: Calculate the amount of net income reported on ABC Company's in..
|
|
Explain president woodrow wilson''s decision to allow the us
: Explain president woodrow wilson's decision to allow the us to be neutral during the beginning of World War One? What was the impact of his decision?
|
|
Types of authentication credentials
: What are the advantages and disadvantages of the three types of authentication credentials (something you know, something you have, and something you are)?
|