In sleep, what does REM stand for?

a
Radical eye movement
b
Random eye maneuver
c
Rapid eye movement
d
Rigid eye motion

Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.