14.4. Conclusion and Summary

Try these first

1. 1.

   What is the conservation of mass?

   Hint

   Think about a balloon - if you inflate it, the mass is the same before and after.

2. 2.

   Give an example of an intensive property.

   Hint

   These properties don’t change if you cut a piece out.

3. 3.

   What does conservation of energy imply in a closed system?

   • Energy can be created
   • Energy can be destroyed
   • Energy can be transformed

   Hint

   Consider how a battery converts chemical to electrical energy.

4. 4.

   Is mass conserved in fluid systems?

   • True
   • False

   Hint

   Think about whether you lose mass when moving it around.

5. 5.

   A tank has inflow and outflow rates of 10 L/min and 8 L/min respectively. Calculate the change in water level in the tank over 5 minutes assuming no leaks.

   Hint

   Consider net inflow over the time period.

6. 6.

   Using the Reynolds transport theorem, explain how you would assess fluid flow in a hatchery system with varying inflow/outflow rates.

   Hint

   Think about how inflow and outflow directly impacts conservation laws.