Faculty of Pharmacy: Non-Newtonian Fluids Viscosity
16 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the definition of Rheology?

  • Analysis of chemical reactions in fluids
  • Study of solid deformation under stress
  • Science of liquid flow or solid deformation under stress (correct)
  • Investigation of drug interactions in the body

    • Which type of fluids maintain a constant viscosity regardless of the applied stress?

  • Newtonian fluids (correct)
  • Non-Newtonian fluids
  • Thixotropic fluids
  • Dilatant fluids

    • What are the two main categories of fluid flow types?

  • Laminar and Turbulent (correct)
  • Shear-thinning and Shear-thickening
  • Newtonian and Non-Newtonian
  • Continuous and Discrete

    • Which type of fluid does not follow Newton's law of viscosity?

    <p>Pseudoplastic fluid</p> Signup and view all the answers

    What is a rheogram used to determine?

    <p>Viscosity of a fluid as a function of shear rate</p> Signup and view all the answers

    What is the relationship between shear stress (F) and shear rate (G) for a Newtonian fluid?

    <p>The relationship is linear, following Newton's law of viscosity.</p> Signup and view all the answers

    What is the main difference between a Viscogram and a Rheogram?

    <p>A Viscogram plots viscosity as a function of shear rate, while a Rheogram plots shear rate as a function of shear stress.</p> Signup and view all the answers

    Which type of non-Newtonian fluid behavior is characterized by an increase in viscosity as shear rate increases?

    <p>Dilatant flow</p> Signup and view all the answers

    What is the key characteristic of a Bingham plastic fluid?

    <p>The fluid requires a minimum yield stress before it begins to flow.</p> Signup and view all the answers

    Which type of non-Newtonian fluid behavior is characterized by a decrease in viscosity as shear rate increases?

    <p>Pseudoplastic flow</p> Signup and view all the answers

    What is the relationship between the slope of the Rheogram and the viscosity of a non-Newtonian fluid?

    <p>For dilatant fluids, a higher slope corresponds to a higher viscosity.</p> Signup and view all the answers

    Which of the following is the simplest type of fluid flow?

    <p>Newtonian fluids</p> Signup and view all the answers

    What is the relationship between shear stress and shear rate for Newtonian fluids?

    <p>Constant viscosity, linear relationship</p> Signup and view all the answers

    What is the key difference between Newtonian and non-Newtonian fluids?

    <p>Newtonian fluids follow Newton's law, non-Newtonian fluids do not</p> Signup and view all the answers

    What is the rheological behavior of non-Newtonian fluids?

    <p>Variable viscosity and non-linear relationship between shear stress and shear rate</p> Signup and view all the answers

    What is the relationship between viscosity and fluidity for Newtonian fluids?

    <p>Viscosity is the slope of the rheogram, fluidity is the reciprocal of the slope</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser