exam 1 intro

# exam 1 intro - P h P 12 Chemical Engineering Depar tment...

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P 2 P 1 h Δ Chemical Engineering Department Basic Principles and Calculations in Chemical Engineering Che-201 First midterm Exam Fall 2009 Examiner : Dr. Mohamed Ali El-Behlil Time allowed 90 minutes Question No. 1 (10 Points) a) Convert R = 1.987 Cal / ( gmole – º C) to lit – atm / ( gmole - º K ). b) Convert the heat transfer coefficient h= 12.25 Btu/ (hr-ft 2 º F) to cal/ (sec - cm 2 - º C). Question No. 2 (10 Points) The velocity of sound is expressed by the relation, C = 49.02 T 1/2 Where: C = speed of sound (ft/sec) T = temperature ( o R) Convert this relationship so that C is in meters per second and T is in Kelvin. Question No. 3 (10 Points) The flow of water over a weir can be computed by the following formula: Q = 5.35 L H 3/2 Where: Q = volume of water (ft 3 /sec) L = length of weir (ft) H = height of water over weir (ft) Convert the formula so that Q is in gallons/min and L and H are measured in inches. Question No. 4

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exam 1 intro - P h P 12 Chemical Engineering Depar tment...

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