The graph below represents the ?-T phase diagram for a substance at P1 at 1 atm. I would appreciate help answering the following questions.
1) What does the ?-T line mean, and what do T1 and T2 mean? Also, briefly explain why a phase change occurs using equation.
2) Draw a diagram in the graph to show what may happen to the straight ?-T line when pressure increases to P2 and briefly explain the reasoning behind it using equation. Note that P2>P1.
Thank You :)