ME
ME 302 Midterm 2

# ME 302 Midterm 2 - ME 302-TEST 2 by Arigid tank is divided...

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ME 302-TEST 2 1. Arigid tank is divided into two compartments by a partition. contains 8.8 kg of CO3 *27 o C and 100 kPa" and the other compartment contains g kg offf. gasat 40 o C and}S} frfa. Now the partition is removed, and the two gases are allowed to mi:q andatthe sa:ne timg heatis added until the &. 1ff4 tt; t{ Lf Vr= Ll,lLrl Mf 7- /)n= l-]r ' : mixtureterrperature is 60o C. Find a (kD' y^^= y,f T = LV"L ?u, 100 kZn T-. = tf r wv= l, To-- L/O'C ?" =L{Q 1.76 '+ wv \- { 'lu( --D,z ,L(,/57\ + 300,1ffi) 30, 6t a^t/ ty' : llA L". ( u lt+' il,, _l- 3 P V= l.-* \Z T V ="^Ri- ? v.=(Yh( ' t#r'tu- t lr( Lnnt CI'i* = Ur-ilr-- . bV = 6U-S 6Uu, : nnCv Af {."t nnCro{ = n4lat tLtL[ Ltr -/ \\ 2. Air enters an evaporative (or srniarrp) coolerat 14.7 psi 95 o F, and20 percent relative humidity, and it exits at 80 percent relative humidity. Deterrtine (a) the exit temperature of the air an{U) the mass rate of flow of spray supplied inkg/min. /,,'o = t Nt7 ' /Fr '\ d, -' '7 , \,-' Q5' F , "r/40 ? StL: y'r= "{, cool., i MOIST -+ ArR i A)r=,0 l3 5H: a) t\ hs= Lj ,07 @ \= 6s MJ = trn"( d.,--d) = ,0O 6 #'/^ K: v,( u, -il,\=)4f& ;^ HOT, DRY AIR '" (z3,or) (,0t3-,ooz)

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,;n , t- tL' ,- tj- I'h,+ I g.
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• Fall '07
• Koonce
• Trigraph, Mf Ll,lLrl 7Vr=, C. mixtureterrperature60o Finda, e/^ il tL, CI'i* Ur-ilr-. bV, thecarbon tU-e ry49s

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