What is the phase for bromine?
liquid
| Bromine | |
|---|---|
| Phase at STP | liquid |
| Melting point | (Br2) 265.8 K (−7.2 °C, 19 °F) |
| Boiling point | (Br2) 332.0 K (58.8 °C, 137.8 °F) |
| Density (near r.t. ) | Br2, liquid: 3.1028 g/cm3 |
What phase changes occur as the temperature of a sample of bromine at 0.10 atm is increased from − 50 C to 200 C?
The (T) of a sample of bromine at 0.10 atm is increased from −50∘ to 200∘C first it changes from solid phase to liquid and then liquid to gas phase.
What does the line separating the solid phase from the gas phase represent?
The lines represent the combinations of pressures and temperatures at which two phases can exist in equilibrium. In other words, these lines define phase change points. The red line divides the solid and gas phases, represents sublimation (solid to gas) and deposition (gas to solid).
How is bromine formed?
Bromine is produced from brine after separation of most of the sodium chloride and potash. The concentration of bromine ions in solutions from the Dead Sea reaches 10-12 gr/l. This high concentration of bromine ions makes the production process efficient.
Where is the gas phase in the phase diagram?
Each region corresponds to the range of combinations of temperature and pressure over which that phase is stable. The combination of high pressure and low temperature (upper left of Figure 12.4. 1) corresponds to the solid phase, whereas the gas phase is favored at high temperature and low pressure (lower right).
What do the lines in a phase diagram represent?
The lines in a phase diagram represent boundaries between different phases; at any combination of temperature and pressure that lies on a line, two phases are in equilibrium.
Where is the solid phase in the phase diagram the liquid phase the gas phase?
The combination of high pressure and low temperature (upper left of Figure 12.4. 1) corresponds to the solid phase, whereas the gas phase is favored at high temperature and low pressure (lower right). The combination of high temperature and high pressure (upper right) corresponds to a supercritical fluid.
How does bromine change from liquid to gas phase?
Consider bromine, Br 2, at room temperature. A significant number of Br 2molecules in the liquid phase have enough kinetic energy to overcome the intermolecular forces (potential energy) and enter the gas phase. Minimum escape kinetic energy Average KE A certain fraction has enough energy to escape into the gas phase.
What is the kinetic energy of bromine at room temperature?
Consider bromine, Br. 2, at room temperature. A significant number of Br. 2 molecules in the liquid phase have enough kinetic energy to overcome the intermolecular forces (potential energy) and enter the gas phase.
What are the physical properties of bromine?
Physical Properties of Bromine (Br 2) melting point -7.2°C (19°F) boiling point 58.8°C (137.8°F) vapor pressure at 25°C 0.30 atm (228 mm Hg) Br∆H vaporization 29.96 kJ/mole 2