Viscosity of gas with an increase in temperature
Correct answer: A. Increases
- A. Increases
- B. Decreases
- C. Remains the same
- D. Zero
Explanation
As the temperature of a gas increases, the viscosity of the gas generally decreases. This is because higher temperatures lead to increased molecular motion, which reduces the internal friction between gas molecules, resulting in decreased viscosity.
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Fluid flow is described through speed, pressure and density, including steady flow and the equation of continuity for conserving mass. Bernoulli's equation relates pressure, speed and height, while fluid drag and terminal velocity explain why a falling object eventually moves at constant speed when drag balances its weight.
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