during a steady flow process a mixture of 8 kmol of N2 and 2
kmol of...
during a steady flow process a mixture of 8 kmol of N2 and 2
kmol of O2 is heated from 200 K to 250 K at a constant pressure of
12 MPa. determine the heat transfer during this process using 1-
the ideal gas approximation 2- kay's rule
A mixture containing 15.0 mol% hexane balance N2 flows through a
pipe at 6.53 kmol/h. The pressure is 2.00 atm (abs) and the
temperature is 100°C. If I want to begin to condense the hexane,
what temperature do I need cool to? If I want to condense 80% of
the hexane, what temperature do I need to cool to?
Methane is completely burned with 250% excess air during a
steady flow combustion process. If the reactants and the products
are kept at 25 ° C and 1 atmosphere and the water of the products
exists in liquid form.
Determined:
to. The balanced equation
b. Heat transfer (kJ / kmol)
c. Adiabatic flame temperature (K)
An equimolar mixture of nitrogen and acetylene enters a
steady-flow reactor at 25℃ and 1.0 bar. The reaction taking
place in the reactor is N2(g) + C2H2(g) = 2 HCN(g). The product
leaves the reactor at 600℃ and 1 bar and contains 24.2% of HCN
by mole. Assuming that the gas mix in the reactor is an ideal gas
with Cp = 43.1 J/mol-K and that no heat loss occurred, how much
heat is supplied to the reactor for each...
Octane is burned completely with theoretical air in a
steady-flow process at a constant pressure of 100 kPa. The products
of combustion are cooled to 25 C. Calculate the number of kg of H2O
which will condense per kg of fuel.
A food processing plant makes soup in a continuous process with
a steady flow of product into and out of a large kettle. The soup
is maintained at a certain temperature by heating the kettle with a
coil of steam pipes. The large size of the kettle means the
entering product remains in the kettle for a long time. Draw a
graphic and describe how the plant could use feedback, feedforward,
and cascade control to maintain a constant temperature. Which...
A 2-Kg mixture of 20% N2 , 30% O2 and 50% CO2 by mass is heated
to 500 K with constant volume. Find The final pressure and the
total heat transfer needed.
mixture of 10 kmol of 70 mol% benzene in toluene is distilled at
atmospheric pressure using differential distillation with a
constant boil up the rate of 10 mol/min. When 50% (by mole) has
been vaporized, report the residue composition, the average vapor
composition, the temperature of the still, and how long the process
takes using :
1. K-constant=1.48
2.alpha constant=2.41
The ethanol-water mixture is separated on a distillation column. Feed contains 20% ethanol
and 1000 kmol / hour speed is entering the system. The feed temperature is 30ºC and its enthalpy is 15kcal / kg.
Saturated feed steam enthalpy 485 kcal / kg and saturated feed liquid enthalpy
70kcal / kg. Distillate has at least 80% ethanol and 2% ethanol concentration of the sub-product
is required to be. The feedback / distillate ratio is 5/3. System pressure is 1 atm....
A mixture of He and N2 gas is contained in a pipe at 298 K and 1
atm total pressure which is constant throughout. At one end of the
pipe at point 1 the partial pressure of He is 0.6 atm and at the
other end, 0.2 m away, the partial pressure is = 0.2 atm. 1.
Calculate the flux of He at steady state if DAB of the He-N2 system
is 0.684 x 10-4 m2 /s. R = 8.314...
For a butanol combustion process (formation enthalpy -332,000 kJ
/ kmol) C4H10O with an excess of 25% air (reagents are at standard
conditions T = 25 C, P = 1atm).
Determine:
a. Adiabatic flame temperature
b. If the products come out at a temperature of 600 K, determine
the heat generated in the combustion chamber.