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Chapter 4: Problem 20

The molecular viscosity of a liquid is given by (a) viscosity \(\times\) mol. wt. (b) viscosity \(\times\) molar volume (c) viscosity \(\times\) molar surface (d) none

Short Answer

Expert verified
The correct answer is (b):viscosity \(\times\) molar volume.

Step by step solution

01

Understand the concept of viscosity

Firstly, note that viscosity refers to a liquid's resistance to flow. When it comes to molecular viscosity, it is influenced by several factors, such as the size and shape of the molecules, as well as the strength of the intermolecular forces.
02

Review the options

Option (a) suggests that the molecular viscosity is calculated by the product of viscosity and molecular weight. This is incorrect as the molecular weight does not have a direct link to the viscosity of a liquid.
03

Evaluate remaining options

Option (b) suggests that the molecular viscosity is calculated by the product of viscosity and molar volume. This is the most accurate among the answer choices, as the volume occupied by one mole of a substance (molar volume) can impact the viscosity by affecting molecular interactions. Option (c) proposing the product of viscosity and molar surface is incorrect, since molar surface is not a standard term. Option (d) is not the correct answer because there is a relationship and it's shown in option (b).
04

Choose the correct answer

Based on the analysis of each option, the correct answer would be (b): viscosity \(\times\) molar volume because molar volume can affect the viscosity of the liquid by influencing molecular interactions.

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