EML4304C Test 2 Summer 2009

EML4304C Test 2 Summer 2009 - EML4304C Test 2 Summer 2009...

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EML4304C Test 2 Summer 2009 10 points each problem Name_____________________________ Page 1 of 12 1. a) What is the Mach number just before the shock? a) 2.438 b) 2.94 c) 3.175 d) 3.368 e) 4.173 1. b) What is the Mach number just after the shock? a) 0.227 b) 0.382 c) 0.479 d) 0.466 e) 0.512 2. Determine the mass flow rate through the nozzle if the exit area is 0.001 m 2 . a) 0.998 kg/s b) 1.14 kg/s c) 1.22 kg/s d) 1.23 kg/s e) 1.31 kg/s 3. a) calculate the exit area of the nozzle a) 1.51 in 2 b) 1.92 in 2 c) 2.99 in 2 d) 3.18 in 2 e) 4.824 in 2 3. b) Calculate the mass flow rate. a) 0.116 slugs/s b) 0.129 slugs/s c) 0.195 slugs/s d) 0.213 slugs/s e) 0.369 slugs/s 4. a) For each mole of the reactant ethanol, how many moles of O 2 are produced? a) 0 b) 0.423 c) 0.667 d) 1.5 e) 3.76 4. b) For each mole of the reactant ethanol, how many moles of N 2 are produced? a) 14.664 b) 3.76 c) 1.3 d) 16.92 e) 13.536 4. c) What is the partial pressure of the water in the products (in kPa)? a) 15.68 b) 10.2 c) 12.8 d) 13.28 e) 14.6 4. d) What partial pressure would be required of the water to be formed as a liquid in this process (in kPa)? a)
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EML4304C Test 2 Summer 2009 - EML4304C Test 2 Summer 2009...

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