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Test: Concentrations, Velocities And Fluxes - Chemical Engineering MCQ


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10 Questions MCQ Test Mass Transfer - Test: Concentrations, Velocities And Fluxes

Test: Concentrations, Velocities And Fluxes for Chemical Engineering 2024 is part of Mass Transfer preparation. The Test: Concentrations, Velocities And Fluxes questions and answers have been prepared according to the Chemical Engineering exam syllabus.The Test: Concentrations, Velocities And Fluxes MCQs are made for Chemical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Concentrations, Velocities And Fluxes below.
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Test: Concentrations, Velocities And Fluxes - Question 1

The ratio of mass concentration of species A to the total mass density of the mixture is known as

Detailed Solution for Test: Concentrations, Velocities And Fluxes - Question 1

Explanation: It is defined as p a/p.

Test: Concentrations, Velocities And Fluxes - Question 2

For a binary mixture of species A and B, the mass average velocity is defined as 

Detailed Solution for Test: Concentrations, Velocities And Fluxes - Question 2

Explanation: p a V a + p b V b/ p a + p = p a V a + p b V b/ p.

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Test: Concentrations, Velocities And Fluxes - Question 3

The ratio of number of moles of species A to the total number of moles of the mixture is known as

Detailed Solution for Test: Concentrations, Velocities And Fluxes - Question 3

Explanation: It is defined as n a/n.

Test: Concentrations, Velocities And Fluxes - Question 4

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 * 10 5 N/m2, find molar concentration of oxygen 

Detailed Solution for Test: Concentrations, Velocities And Fluxes - Question 4

Explanation: 0.21 * 10 5/8341 * 300 = 8.42 * 10 -3 kg mol/m3.

Test: Concentrations, Velocities And Fluxes - Question 5

For a binary mixture of species A and B, the molar average velocity is defined as 

Detailed Solution for Test: Concentrations, Velocities And Fluxes - Question 5

Explanation: n A V A + n B V B/n A + n B = n A V A + n B V B/n.

Test: Concentrations, Velocities And Fluxes - Question 6

Given diagram shows diffusion of water vapor through air. Identify the correct statement

Detailed Solution for Test: Concentrations, Velocities And Fluxes - Question 6

Explanation: The slight movement of air over the top of the tube does not bring about any change in the concentration profile of air.

Test: Concentrations, Velocities And Fluxes - Question 7

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 * 10 5 N/m2, find overall mass density 

Detailed Solution for Test: Concentrations, Velocities And Fluxes - Question 7

Explanation: For oxygen = 0.269 kg/m3 and for nitrogen = 0.887 kg/m3.

Test: Concentrations, Velocities And Fluxes - Question 8

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 * 10 5 N/m2, find molar fraction of nitrogen 

Detailed Solution for Test: Concentrations, Velocities And Fluxes - Question 8

Explanation: Molar fraction is equal to the partial pressure.

Test: Concentrations, Velocities And Fluxes - Question 9

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 * 10 5 N/m2, find mass fraction of oxygen 

Detailed Solution for Test: Concentrations, Velocities And Fluxes - Question 9

Explanation: 0.269/1.156 = 0.233.

Test: Concentrations, Velocities And Fluxes - Question 10

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 * 10 5 N/m2, find the average molecular weight of the mixture 

Detailed Solution for Test: Concentrations, Velocities And Fluxes - Question 10

Explanation: (0.21) (32) + (0.79) (28) = 28.84.

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