Q. A binary mixture of oxygen and nitrogen with partial pressures in the ratio 0.21 and 0.79 is contained in a vessel at 300 K. If the total pressure of the mixture is 1 * 10⁵ N/m², find mass fraction of oxygen

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Q. A binary mixture of oxygen and nitrogen with partial pressures in the ratio 0.21 and 0.79 is contained in a vessel at 300 K. If the total pressure of the mixture is 1 * 10⁵ N/m², find the average molecular weight of the mixture

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Q. In which of the following conditions mass transfer will occur spontaneously? C and z is concentration and distance respectively.

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Q. Which among the following is always true for mass transfer to occur?

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Q. A solution contains 0.3 moles of solute A, 0.2 moles of B and 0.5 moles of C. What will be the mole fraction of A in the mixture?

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Q. A gas mixture containing 21% O₂ and 79% N₂ flows through a pipe of circular cross-section of diameter 2cm at atmospheric pressure. The velocity of O₂ is 0.04m/s and N₂ is 0.035m/s.

What is the value of molar average velocity (m/s) of the mixture?

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Q. A gas mixture containing 21% O₂ and 79% N₂ flows through a pipe of circular cross-section of diameter 2cm at atmospheric pressure. The velocity of O₂ is 0.04m/s and N₂ is 0.035m/s.

What will be the value of mass average velocity (m/s)?

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Q. A gas mixture containing 21% O₂ and 79% N₂ flows through a pipe of circular cross-section of diameter 2cm at atmospheric pressure. The velocity of O₂ is 0.04m/s and N₂ is 0.035m/s.

What is the value of Volume average velocity?

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Q. In a gas mixture if molecular weights of all the species are equal than which one will be more, Mass average velocity or Molar average velocity?

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Q. The velocity of various components of mixture(21% A, 78% B and 1% C) are:
Velocity is in the form: v=xi+yj+zk

Velocity of component A= (0.1, 0, 0)

Velocity of component B= (0, 0.1, 0)

Velocity of component B= (0, 0, 0.1)

Calculate the value of average molar velocity?

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Q. The velocity of various components of mixture(21% A, 78% B and 1% C) are:
Velocity is in the form: v=xi+yj+zk

Velocity of component A= (0.1, 0, 0)

Velocity of component B= (0, 0.1, 0)

Velocity of component B= (0, 0, 0.1)

Calculate the value of mass average velocity?

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Q. For the calculation of Mass average velocity, which velocity of the molecule is used?

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Q. Which among the following can be the unit of Flux?

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Q. A molecule in a mixture moves with a velocity of 0.03m/s in (+x) direction. The concentration of the particle is 0.5 mol/liter. A observer is running in (-x) direction with a velocity of 2m/s. calculate the value of molar flux (mol/m².s) relative to the observer.

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Q. A molecule in a mixture moves with a velocity of 0.03m/s in (+x) direction. The concentration of the particle is 0.5 mol/liter. A observer is running in (-x) direction with a velocity of 2m/s. What will be the value of flux (mol/m².s) with respect to a stationary observer?

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Q. Under which of the following conditions mass average velocity and molar average velocity are equal?

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Q. The mass flow rate of a component in a mixture in X-direction is 2kg/s. The area vector at a particular cross-section is (1.1, 3.2, 5.4) cm². Calculate the value of flux (kg/cm².s) through the cross-section.

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Q. Fick’s law is given by the formula

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Q. What is the unit of diffusion coefficient?

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Q. What is the molecular weight of ammonia?

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