Problem 2.7:
An eight-liter pressure cooker contains a mixture of steam and liquid water at 2 bar. Through a level indicator we can see that the liquid occupies 25% of the volume inside the cooker.
a) What is the temperature inside the cooker?
b) What is the total mass of water (liquid plus vapor) in the cooker?
c) What is the mass fraction of the liquid?
d) The cooker, while it remains sealed, is placed under running water until its temperature cools to 25 °C. What is the pressure in the cooker?
e) What force does it take to unseal the cooker? The cover is circular with a radius of 20 cm.