Problem
1. If the pressure is smaller than the smallest Psat at a given T, what is the phase?
2. An external water tap has the valve activated by a long spindle, so the closing mechanism is located well inside the wall. Why?
3. What is the lowest temperature (approximately) at which water can be liquid?
4. Some tools should be cleaned in liquid water at 150oC. How high a P is needed?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.