Skip to main content
Ch.11 - Liquids and Intermolecular Forces

Chapter 11, Problem 33b

(b) What is the relationship between viscosity and temperature?

Verified Solution
Video duration:
46s
This video solution was recommended by our tutors as helpful for the problem above.
392
views
Was this helpful?

Video transcript

Hey, everyone asked which of the following statements describes the relationship between temperature and viscosity. Now, we know that viscosity is defined as resistance to flow, and we've also learned that at high temperatures, liquids flow with more ease. So if liquids flow with more ease at high temperatures, this must mean our viscosity decreases as our temperature increases. So our answer here is going to be be the viscosity decreases as temperature increases. So I hope that made sense and let us know if you have any questions.
Related Practice
Textbook Question

Based on the type or types of intermolecular forces, predict the substance in each pair that has the higher boiling point: (d) phosgene (Cl2CO) or formaldehyde (H2CO)

1364
views
Textbook Question

A number of salts containing the tetrahedral polyatomic anion, BF4-, are ionic liquids, whereas salts containing the somewhat larger tetrahedral ion SO42- do not form ionic liquids. Explain this observation.

681
views
Textbook Question

The generic structural formula for a 1-alkyl-3-methylimid- azolium cation is where R is a -CH2(CH2)nCH3 alkyl group. The melting points of the salts that form between 1-alkyl-3-methylimidazolium cation and the PF6- anion are as follows: R = CH2CH3 (m.p. = 60 °C), R = CH2CH2CH3 (m.p. = 40 °C), r = CH2CH2CH2CH3 (m.p. = 10 °C), and R = CH2CH2CH2CH2CH2CH3 (m.p. = -61 °C). Why does the melting point decrease as the length of alkyl group increases?

387
views
Textbook Question

Based on their composition and structure, list CH2Cl2, CH3CH2CH3, and CH3CH2OH in order of (c) increasing surface tension

1823
views
Textbook Question

Liquids can interact with flat surfaces just as they can with capillary tubes; the cohesive forces within the liquid can be stronger or weaker than the adhesive forces between liquid and surface:

(b) Which of these diagrams, i or ii, rep- resents what happens when water is on a nonpolar surface?

369
views
Textbook Question
The boiling points, surface tensions, and viscosities of water and several alcohols are as shown below: (b) How do you explain the fact that propanol and ethylene glycol have similar molecular weights (60 versus 62 amu), yet the viscosity of ethylene glycol is more than 10 times larger than propa- nol?
781
views