A gas mixture with a volumetric composition of 35% CO + 65% N2
is burned with...
A gas mixture with a volumetric composition of 35% CO + 65% N2
is burned with fuel, 63% excess air. Fuel enters the furnace at 100
0C and air enters at 25 0C. Calculate the adiabatic (theoretical)
flame temperature.
A petroleum gas mixture containing 65% propane (C3H8) and 35%
propylene (C3H6) is burned with 40% excess air. The flow rate of
the gas mixture is 200 mol/h. All of the propylene and 90% of the
propane are consumed. No CO is found in the product. Write the
chemical reactions. How much air is added to the reactor (molar
flow rate)? What is the molar flow rate of the outlet gas?
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.
A mixture of propane and butane is burned with air. Partial
analysis of the stack gas produces the following dry-basis volume
percentages: 0.0527% C3H8, 0.0527% C4H10, 1.48% CO, and 7.12% CO2.
The stack gas is at an absolute pressure of 780 mmHg and the dew
point of the gas is 46.5 ˚C. Calculate the molar composition of the
fuel.
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...
Air is a mixture of gases with the following mass percentage
composition: 75.52% N2, 23.15% O2, 1.28% Ar, and 0.046% CO2.
A. What are the partial pressures of N2, O2, Ar, and CO2 when
the total pressure is 1.100 atm?
B. Calculate the molar Gibbs energy of mixing of air at 25C
assuming ideal gas behavior.
C. Determine the molar enthalpy of mixing and the molar entropy
of mixing for air at 1.100 atm and 25C.
D. Is the mixing...
A fuel consists of a mixture of gases the composition of which
is CO -20%, C2H2 - 35%, H2 45 % by volume. Determine the
stoichiometric air-to-fuel ratio by mass. (10.6)
A gas mixture contains 5 kg of N2 and 10 kg of
O2. Determine (a) the average molar mass and (b) gas
constant. (c) What-if Scenario:What would the
average molar mass be if the gas mixture contained 10 kg of
N2 and 5 kg of O2?
a) ? kg/mol
b)? KJ/kgk
c) ? kg/mol
A vessel contains a gaseous mixture of composition by volume 80% H2, and 20% CO. It is desired that the mixture should be made in the proportion 50% H2 and 50% CO by removing some of the mixture and adding some CO. Calculate, per kilomole of mixture, the mass of mixture to be removed and the mass of CO to be added. The pressure and temperature in the vessel remain constant during the process. Take the molar mass of H2...
A gas mixture contains the following gases at the indicated
partial pressures: N2, 310. torr ; O2, 144 torr ; and He, 225 torr.
1. What mass of each gas is present in a 2.85 L sample of this
mixture at 25.0 ∘C?
A gas mixture contains the following gases at the indicated
partial pressures: N2, 310. torr ; O2, 144 torr ; and He, 225 torr.
1. What mass of each gas is present in a 2.85 L sample of this
mixture at 25.0 ∘C?