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 Under which of the following conditions mass average velocity and molar average velocity are equal?
  • a)
    In a very dilute solution
  • b)
    If molecular weights of all the species are equal
  • c)
    Always different
  • d)
    In dilute solutions as well as in solutions in which all components have same molecular weights
Correct answer is option 'D'. Can you explain this answer?
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Under which of the following conditions mass average velocity and mola...
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Under which of the following conditions mass average velocity and mola...
Explanation:

Mass average velocity and molar average velocity are two ways to calculate the average velocity of a mixture of gases or liquids. The conditions under which they are equal are discussed below:

Dilute Solutions:

In dilute solutions, the number of molecules of each component is small compared to the total number of molecules in the solution. Therefore, the mass average velocity and molar average velocity are approximately equal because the contribution of each component to the total velocity is proportional to its concentration.

Same Molecular Weights:

If all the components in the mixture have the same molecular weight, then the mass average velocity and molar average velocity will be equal. This is because the contribution of each component to the total velocity is proportional to its concentration and the molecular weight cancels out.

Different Molecular Weights:

If the components in the mixture have different molecular weights, then the mass average velocity and molar average velocity will be different. This is because the contribution of each component to the total velocity is proportional to its concentration and molecular weight.

Conclusion:

In conclusion, the mass average velocity and molar average velocity are equal in dilute solutions as well as in solutions in which all components have the same molecular weights. In other cases, they are different.
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Under which of the following conditions mass average velocity and molar average velocity are equal?a)In a very dilute solutionb)If molecular weights of all the species are equalc)Always differentd)In dilute solutions as well as in solutions in which all components have same molecular weightsCorrect answer is option 'D'. Can you explain this answer?
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