Enthalpy-Entropy Diagram Representation of Condensation
Condensation is the process where a substance changes from a gaseous state (vapor) to a liquid state. When considering a mixture of saturated liquid and saturated vapor, this phase transition typically occurs at constant temperature and pressure.
Constant Temperature and Pressure Processes
- On a phase diagram, processes occurring at constant temperature and pressure, such as boiling or condensation within the saturation region, are represented by specific lines.
- The enthalpy-entropy (h-s) diagram is used to visualize thermodynamic processes.
- In the saturation region of an h-s diagram, lines representing constant temperature and constant pressure are horizontal.
Condensation Representation
During condensation, heat is removed, causing the enthalpy to decrease. If the process involves both saturated liquid and saturated vapor at equilibrium, the temperature and pressure remain constant throughout the phase change. Therefore, the condensation of a mixture consisting of saturated liquid and saturated vapor is depicted as a Horizontal line on an enthalpy-entropy diagram.
Important Questions from Thermodynamic Properties of Steam & Steam Tables
Vaporization refers to the change in state of matter from
- The properties of water are arranged in the steam tables as a functions of
Fill in the blank with the appropriate word(s) from the options.
In a steam table, the data always refers to the properties of steam at its _________.
The critical point of water is
The amount of water evaporated from and at 100 °C into dry saturated steam at atmospheric pressure is called
