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1 Derive a relation between mass and mole fraction.
2 A mixture consists of two gases A and B of mass fractions mfA and mfB respectively, Prove that their mole fraction are given by
EMBED Equation.3
3 A gas mixture consists of 5 kg of O2, 8 kg of N2 and 10 kg of CO2. Determine mass fraction of each component, mole fraction of each component and average molar mass and gas constant of the mixture.
4 Determine the mole fraction of a gas mixture that contains 60% CH4 and 40% CO2 by mass. Also determine gas constant of the mixture.
5 A gas mixture consists of 8 kmol of H2 and 2 kmol of N2. Determine mass of each component and apparent gas constant of mixture.
6 A rigid tank contains 0.5 kmol of Ar and 2 kmol of N2 at 250 kPa and 280 K. The mixture is now heated to 400 K. Determine the volume of the tank and final pressure of the mixture.
7 A gas mixture consists of 1 kg of CO2 and 3 kg of CH4 at 300 K and 200 kPa. Determine the partial pressure of each gas and molar mass of gas mixture.
8 A rigid tank contains 2 kg of N2 at 25oC and 200 kPa. Another tank contains 3 kg of O2 at 25oC and 500 kPa. A pipe connects the two tanks with a valve in between. The two gases mix and the final temperature is 25oC. Determine volume of each tank and the final pressure of the mixture.
9 An insulated tank is divided into two compartments by a partition. One part contains 0.5 kmol of CO2 at 27oC and 200 kPa and the other partition has 7.5 kmol of H2 at 40oC and 400 kPa. The partition is removed and two gases mix. Determine mixture temperature, mixture pressure assuming constant specific heat values for both gases.
TITURAIL SHEET(3C)
1 A gas is contained in a frictionless cylinder with a piston over it.The piston is held by a spring which exerts a force of 60N on the piston.The mass of piston is 4kg and the atmosphuric pressure is 95 kPa.If the area of the piston is 35cm2 calculate the pressure of the gas.
2
CLASS PROBLEMS 3
1 Agas mixture contains 6 kg 0f oxygen,10 kg of nitrogen and 24 kg 0f methane.Calculate mass fraction and mole fraction of each component,molecular weight and gas constant of mixture.
2 A gas mixture consists of 3 kmol of O2, 5.5 kmol of N2 amd 1.8 kmol of CO2. Calculate mass fraction and mole fraction of each component,molecular weight and gas constant of mixture.
3 A gas mixture contains 40% of CO, 10% of N, 40% of O and 10% of H. Calculate mass fraction of each component,molecular weight and gas constant of mixture.
4 Mass fraction of components of agas mixture are 52.7% of CO,8.4% of N,0.6% of H and 38.3% of O. Calculate mole fraction and volume fraction of each component,molecular weight and gas constant of mixture.
5 An insulated tank has two compartments.One contains 7 kg of O at 40 C and 100 kPa and other has 4 kg of N at 20C and 150 kPa. The partition is burst.Find mixture temperature and pressure.
CLASS PROBLEMS 3
1 Agas mixture contains 6 kg 0f oxygen,10 kg of nitrogen and 24 kg 0f methane.Calculate mass fraction and mole fraction of each component,molecular weight and gas constant of mixture.
2 A gas mixture consists of 3 kmol of O2, 5.5 kmol of N2 amd 1.8 kmol of CO2. Calculate mass fraction and mole fraction of each component,molecular weight and gas constant of mixture.
3 A gas mixture contains 40% of CO, 10% of N, 40% of O and 10% of H. Calculate mass fraction of each component,molecular weight and gas constant of mixture.
4 Mass fraction of components of agas mixture are 52.7% of CO,8.4% of N,0.6% of H and 38.3% of O. Calculate mole fraction and volume fraction of each component,molecular weight and gas constant of mixture.
5 An insulated tank has two compartments.One contains 7 kg of O at 40 C and 100 kPa and other has 4 kg of N at 20C and 150 kPa. The partition is burst.Find mixture temperature and pressure.
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