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Twelfth Grade (Grade 12) Fluid Mechanics Questions

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Grade 12 Fluid Mechanics
In the equation for the ideal gas law, [math]PV=nRT[/math], what does [math]n[/math] represent?
  1. Newton
  2. number of molecules
  3. number of moles
  4. gas constant
Grade 12 Fluid Mechanics
Wind speed will increase considerably in a mountain pass due to the inverse relationship between speed and pressure. What explains this effect?
  1. Pascal's principle
  2. Archimedes' principle
  3. Bernoulli's principle
  4. Newton's principle
Grade 12 Fluid Mechanics
Under what conditions do real gases behave almost like ideal gases?
  1. high temperature, low pressure
  2. high temperature, high pressure
  3. low temperature, high pressure
  4. low temperature, low pressure
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