What is happening in a phase change diagram?
Phase diagram is a graphical representation of the physical states of a substance under different conditions of temperature and pressure. A typical phase diagram has pressure on the y-axis and temperature on the x-axis. As we cross the lines or curves on the phase diagram, a phase change occurs.
How do you know when a phase change happens?
A phase change is when matter changes to from one state (solid, liquid, gas, plasma) to another. (see figure 1). These changes occur when sufficient energy is supplied to the system (or a sufficient amount is lost), and also occur when the pressure on the system is changed.
What do the lines on a phase diagram represent?
A phase diagram shows the temperatures and pressures at which the various phases (i.e., solid, liquid and gas) of a substance can exist. The solid lines identify the temperatures and pressures at which an equilibrium exist between phases. The point at which the lines intersect represents the triple point.
What is a phase change reaction?
Phase transitions are a type of chemical reaction. Most of the chemical reactions studied in Chem 151 and 152 involve the breaking or forming of bonds within molecules; phase transitions involve the breaking or forming of intermolecular forces (attractive interactions between molecules).
Is a phase change that occurs when solid changes into liquid?
The process of a solid becoming a liquid is called melting (an older term that you may see sometimes is fusion).
What are the types of phase changes?
Phase Change: Evaporation, Condensation, Freezing, Melting, Sublimation & Deposition.
What do the lines on a phase diagram represent Brainly?
The sections between the lines represent phases of matter—solid, liquid, and gas.
What are the different stages of phase transformation?
There are six ways a substance can change between these three phases; melting, freezing, evaporating, condensing, sublimination, and deposition(2). These processes are reversible and each transfers between phases differently: Melting: The transition from the solid to the liquid phase.