Test I Solutions - Thermodynamics | ENSC 2213, Exams of Thermodynamics

Download Test I Solutions - Thermodynamics | ENSC 2213 and more Exams Thermodynamics in PDF only on Docsity! ENSC 2213 Thermodynamics EXAM 1/9-16-11 NAME - vc -- (25) Problem I. A container has nlOlume QLQ.05.iB/and contains liquid methanol (MW=32.0 /6",/ ) /' ~ 7 -" //6 ••••ILlh\iitlilmolE, SO = 0.792) and has a telllperature of 60°F. Iculate the following (show your calculations).~- ~ - ')b=- /"'" -:::) a) The temperature In oR and in °c. f< ~ '=';:: f '11,,9, '7 _ :: ~ __lf~_'f~7--=--[iJ.n01(( - -;;c. = Y-t ( '? - ~Z) = yq (60- 'i'"t) ': /I,., Q b) The mass density of the methan'onnI mlft . c) The specific weight of the methanol in Ibrlft3. :::) ~ =[S'GKfw) -;.) ~= (O.'?91.)(6l,'f!6/{tl) ~~'1 /~V d) The mass of the methanol in the tank in Ibm. /= e) The specific volume of the methanol in ft3/lbm. 1/ =- .0'2 f) The number of Ibmoles of methanol. 2 (25) ENSC 2213 Thermodynamics NAME / EXAM I / 9-16-11 - - --"7-'/ '"bl,," 2. W",,, '" 0 «mk • pre""",,d byoi, .b"" " "' ;b,~ i~re bd,w. If<b'~ specific gravity of the oil is 0.85 and the mercury is 13.6, calculate th age essure of the air in the tank in kPa. Data: <;(; ~ .!:. )~ ¥.f.::~G.,{w p'~p~-po-pw/ PI :-(h1Ilt) - (i1z.)(YJ(,8{)r(h, Xt)(I',6) "J - AIR Iii> > ." WATER T PI.h,1 2 T T h, h, 1 1 Mercury \c;"I~.i. .JeI p....(.)S •••.•.e) rt," "-"-V~ ::: •• (, 6<;6r+)l~VI ~'f~') - (.?1'1t+)( 67.,'1'{$\..f (/. ,OU.I-'"yZ, ~j( I~, b) J n7,3 !):£, )( 1Pf:! )< 6&7".f~ /M '(fJ< IL.fIf;,{ /~~ A f j - 7b. ~ k Pc; ?-,€- :; fAir 3