Chemistry
Chemistry, 05.07.2019 10:00, kluke7170

Ineed anyone? ? 3. critical point. 4. define critical pressure

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Chemistry, 26.07.2019 21:20, al8ce
Hydrogen cyanide (hcn) can also be produced by gas-phase nitrogenation of acetylene (c2h2) according to the reaction 3) n2 (g) + c2h2 (g) ←+ 2hcn (g) the feed to the reactor consists of gaseous n2 and c2h2 in their stoichiometric proportions and the reaction temperature is controlled at 573 k. estimate the maximum mole fraction of hcn in the product stream for a reactor pressure of 200 bar. at this pressure, the assumption of ideal gas behavior is not valid. instead, you can assume the gas mixture is an ideal solution. data: critical temperature (to) of n2 126.2 k critical pressure (pofna-33.9 bar acentric factor (a) of n2 -0.04 critical pressure (p) of cah2-61.4 bar acentric factor (a) of ch2-0.184 critical temperature (to) of hcn 456.7 k critical pressure (p) of hcn-49.6 bar acentric factor (a) of hcn-0.4 standard gibbs free energy of reaction at 573 k-( 0".1 klmole critical temperature (te) of cah2-308.3
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Chemistry, 13.09.2019 20:30, kaitlyn0123
Hydrogen cyanide (hcn) can also be produced by gas-phase nitrogenation of acetylene (c2h2) according to the reaction 2hcn (g) n2 (g)+cah2 (8) the feed to the reactor consists of gaseous n2 and c2h2 in their stoichiometric proportions and the reaction temperature is controlled at 573 k. estimate the maximum mole fraction of hcn in the product stream for a reactor pressure of 200 bar. at this pressure, the assumption of ideal gas behavior is not valid. instead, you can assume the gas mixture is an ideal solution. data critical pressure (pe) of n2-33.9 bar 126.2 k critical temperature (te) of n2 critical temperature (te) of cah2-308.3 acentric factor () of n2 0.04 acentric factor (a) of c2h2 0.184 critical pressure (pe) of c2h2 61.4 bar 49.6 bar critical pressure (pe) of hcn critical temperature (te) of hcn-456.7 k acentric factor (a) of hcn 0.4 standard gibbs free energy of reaction at 573 k= (ag°573)exn =30.1 kj/mole
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Engineering, 14.09.2019 03:10, Ully4559
Alarge chamber contains air at 80 psia and 600 r at zero velocity. the air enters a converging- diverging nozzle which has an area ratio (exit/throat) of 3.0 a) what pressure must exist in the receiver for the nozzle to operate at its first critical point? the flow will reach sonic at the throat then decelerate to subsonic conditions at the exit b) what should the receiver pressure be for operating at the third critical point where supersonic flow exits the nozzle? if operating at the third critical point, what are the density and velocity of the air at the nozzle exit plane?
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