A vessel initially containing 1 kmol of CO and 4.76 kmol of dry
air forms an...
A vessel initially containing 1 kmol of CO and 4.76 kmol of dry
air forms an equilibrium mixture of CO2, CO,
O2, and N2 at 2800 K, 1 atm. Determine the
equilibrium composition.
A vessel initially containing 1 kmol of CO and 4.76 kmol of dry
air forms an equilibrium mixture of CO2, CO, O2, and N2 at 2800 K,
1 atm. Determine the equilibrium composition.
One kmol of gaseous octane (C8H18) is ignited with
stoichiometric amount of dry air in a closed, rigid vessel. The
pressure of the reactants is 1 atm and the temperature is 25C;
while the temperature of the products is 727C. Assume “complete”
combustion.
(a) Calculate the pressure (atm) of the products.
(b) Determine the heat transfer (kJ/kg fuel) during the
reaction.
Answer: (a) 3.42 atm
Consider an adiabatic, piston cylinder assembly containing 1
kmol of propane (C3H8) and 7 kmol of oxygen
(O2). The piston is initially pinned, and the pressure
is P1=1000 kPa with temperature T=1000 K. The pin is removed and
the system expands until the total cylinder pressure is P2=100 kPa
and the temperature is T2=600 K. Assume ideal gases and constant
specific heat.
Oxygen: cp=0.918 kJ/kg*K, cv=0.658
kJ/kg*K, MW=32 kmol/kg
Propane: cp=1.67 kJ/kg*K, cv=1.48 kJ/kg*K,
MW=44 kmol/kg
Universal gas constant R=8.314...
1. A tank contains 4 kmol of Carbon Monoxide (CO) gas
and 6 kmol of Oxygen (O2) gas at a temperature of 195 K and a
pressure of 8.41 MPa. Determine the gas constant of the mixture,
(Rm)
2. A tank contains 8 kg of Carbon Monoxide (CO) gas
and 2 kg of Oxygen (O2) gas at a temperature of 195 K and a
pressure of 8.41 MPa. Determine the gas constant of the mixture,
(Rm)
1.50L reaction vessel was initially filled with 0.150moles of CO
and 0.300moles of H2. After equilibrium is established, the vessel
is found to contain 0.119moles of CO. What is the equilibrium
constant for this reaction? The reaction is: CO(g) + 2H2(g) ↔
CH3OH(g)
Consider the reaction: X2(g)→2X(g). When a vessel initially
containing 714 torr of X2 comes to equilibrium at 298 K, the
equilibrium partial pressure of X is 116 torr . The same reaction
is repeated with an initial partial pressure of 777 torr of X2 at
707 K ; the equilibrium partial pressure of X is 561 torr
Find delta H for the reaction (in kJ/mol)
Consider the reaction CO(g)+NH3(g)⇌HCONH2(g), Kc=0.870 If a
reaction vessel initially contains only CO and NH3 at
concentrations of 1.00 M and 2.00 M, respectively, what will the
concentration of HCONH2 be at equilibrium?
A system containing 2 moles of CO 2 (g) is initially at 25 0 C
and 10atm and is confined to a cylinder that has a cross section of
10 cm 2 . The system expands adiabatically against an external
pressure of 1 atm until the piston has moved upwards through 20cm.
Assume that CO 2 is an ideal gas with C v,m = 28.8 J/K mol.
Calculate q, w, Δ U, Δ T and Δ S.
A gas mixture containing water vapor has a dry basis molar
composition of 8.5% CO, 10.5% CO2,0.5% O2 and 80.5% N2. The gas s
at 620c and 1 atm with a dewpoint of 57c at a flow rate of
1270mol/h.The gas is cooled to 425C by spraying water at 20C into
the gas.Assume that the spray unit is adiabatic .calculat the
required water feed rate in kg /h.