Problems:

4.9

4.10

Answers:

4.9	m-dot = 1.0 g/s; mremaining = 30 g
4.10	m1-dot = 0.3484 g/s; A2 = 1.745 cm2

Hints:
You may want to follow these steps

• Read EACH word.
• Draw some pictures (one for each state).
• Write the given information under each picture.
• Write what you know about the process.
• Write what it is you are to find.
• DRAW the process on a p-v plot.
• Write write the equations you are to use (or might want to use).
• If necessary, find the phase at each state.
• Be sure to indicate which tables you are using.

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