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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

What factors affect the viscosity of a substance? Which of the following substances, water (H2O), ethanol (CH3CH2OH), ethylene glycol (HOCH2CH2OH), and glycerol (HOCH2CH(OH)CH2OH), is expected to have the highest viscosity? Should viscosity of a substance be affected by temperature? Explain your answers.

Interpretation Introduction

Interpretation: Factors affecting are viscosity should be determined. The compound having highest viscosity among the given compounds has to be determined. The viscosity of a substance is whether affected by the temperature should be explained

Concept Introduction:

Viscosity: The resistance experienced by the liquid while flowing is known as viscosity

Factors affecting are viscosity:

  • Temperature
  • Concertation
  • Intermolecular force
Explanation

The resistance experienced by the liquid while flowing is known as viscosity

Factors affecting are viscosity are temperature, concentration and intermolecular forces

  1. 1. As the temperature increases viscosity decreases
  2. 2. Concentration increases the viscosity of the substance
  3. 3. The viscosity is high if the substance has high intermolecular force

The viscosity is high if the substance has high intermolecular force.

Glycerol has high intermolecular force since the three OH forms hydrogen bonding

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