2.3. Thermodynamic Properties

Try these first

1. 1.

   Define the term 'density'.

   Hint

   Think about how much 'stuff' is in a given space.

2. 2.

   What is pressure?

   Hint

   Consider how weight exerts force on a surface.

3. 3.

   What is the relationship between viscosity and temperature?

   • Viscosity increases with temperature
   • Viscosity decreases with temperature
   • Viscosity is not affected by temperature

   Hint

   Think about how heating a thick syrup changes its ability to flow.

4. 4.

   True or False: Entropy measures the order in a fluid.

   • True
   • False

   Hint

   Disorder often creates a chaotic environment in a system.

5. 5.

   Given a fluid with a known density and volume, calculate the mass and discuss its implications in a hydraulic system.

   Hint

   Remember the formula for mass and consider real-life applications.

6. 6.

   Analyze how changes in enthalpy affect the energy transfer in a hydraulic system, providing a specific example.

   Hint

   Think about phase changes in liquids and gases.