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What is the primary factor that determines the viscosity of a fluid?

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Question: What is the primary factor that determines the viscosity of a fluid?

Options:

  1. Temperature
  2. Pressure
  3. Density
  4. Molecular size

Correct Answer: Temperature

Solution: 

Viscosity is primarily affected by temperature; as temperature increases, viscosity generally decreases.

What is the primary factor that determines the viscosity of a fluid?

Practice Questions

Q1
What is the primary factor that determines the viscosity of a fluid?
  1. Temperature
  2. Pressure
  3. Density
  4. Molecular size

Questions & Step-by-Step Solutions

What is the primary factor that determines the viscosity of a fluid?
  • Step 1: Understand what viscosity means. Viscosity is a measure of how thick or sticky a fluid is.
  • Step 2: Learn that temperature affects viscosity. When a fluid is heated, its molecules move faster.
  • Step 3: Realize that faster-moving molecules can slide past each other more easily.
  • Step 4: Conclude that as the temperature of a fluid increases, its viscosity decreases, making it less thick.
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