Question

Plot two points A and B in Figure and determine the states of aggregation (or phases) of water and methane that coexist in each of the two environments. 

Point A: P = 3 × 10^-2 bars, T = 15°C

Point B: P = 20 bars, T = -80°C

Answer 1

Point A: water is liquid, methane is vapor

Point B: water is ice, methane is vapor