Chemical Engineering Concepts Quiz
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Questions and Answers

Which of the following best defines surface tension?

  • Force that causes liquid surfaces to shrink into the minimum surface area (correct)
  • The ability of solids to dissolve in liquids
  • The tendency of molecules to attract each other
  • Resistance of a liquid to flow

HLB system is related to the classification of surfactants.

True (A)

What does CMC stand for in the context of micelles?

Critical Micelle Concentration

The definition of __________ is the ability of a substance to dissolve in a solvent.

<p>solubility</p> Signup and view all the answers

Match the following terms with their definitions:

<p>Polymorphism = The ability of a substance to exist in more than one form or crystal structure Diffusion = The movement of particles from an area of higher concentration to lower concentration Buffer Solution = A solution that resists changes in pH when small amounts of acid or base are added Rheology = The study of the flow and deformation of matter</p> Signup and view all the answers

What is the definition of adsorption?

<p>The process by which molecules adhere to a surface</p> Signup and view all the answers

Fick's first law of diffusion relates to the flow of heat.

<p>False (B)</p> Signup and view all the answers

What do you understand by the term 'partition coefficient'?

<p>A ratio that indicates how a compound partitions between two immiscible phases</p> Signup and view all the answers

Which of the following is NOT a type of flow in rheology?

<p>Laminar flow (A), Turbulent flow (D)</p> Signup and view all the answers

__________ is the equation used to relate the pH of a buffer solution to the concentration of its components.

<p>Henderson-Hasselbalch equation</p> Signup and view all the answers

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