Phase Diagrams

The area of the graph that represents the solid phase is:
1. A
2. B
3. C
The area of the graph that represents the liquid phase is:
1. A
2. B
3. C
The area of the graph that represents the gas phase is:
1. A
2. B
3. C
A phase change from Phase C to Phase B is known as:
1. Melting
2. Freezing
3. Condensation
4. Vaporization
5. Deposition
6. Sublimation
A phase change from Phase B to Phase C is known as:
1. Melting
2. Freezing
3. Condensation
4. Vaporization
5. Deposition
6. Sublimation
A phase change from Phase C to Phase A is known as:
1. Melting
2. Freezing
3. Condensation
4. Vaporization
5. Deposition
6. Sublimation
A phase change from Phase A to Phase C is known as:
1. Melting
2. Freezing
3. Condensation
4. Vaporization
5. Deposition
6. Sublimation
A phase change from Phase B to Phase A is known as:
1. Melting
2. Freezing
3. Condensation
4. Vaporization
5. Deposition
6. Sublimation
A phase change from Phase A to Phase B is known as:
1. Melting
2. Freezing
3. Condensation
4. Vaporization
5. Deposition
6. Sublimation
Above 200 ºC (T_c), this substance can only exist as:
1. a gas
2. a solid
3. a liquid
Above 300 atm (P_c), this substance cannot exist as:
1. a solid
2. a liquid
3. a gas
The triple point of this substance occurs at:
1. 200 ºC and 300 atmospheres
2. 0 ºC and 6 atmospheres
3. -15 ºC and 1 atmosphere
4. - 15 ºC and 6 atmospheres
At STP, this substance can exist as:
1. a solid only
2. a gas only
3. a liquid only
4. a solid or a gas
At 30 atmospheres pressure, the melting point of this substance is:
1. -105 ºC
2. -15 ºC
3. 0 ºC
4. 50 ºC
5. 200 ºC
At 30 atmospheres pressure, the boiling point of this substance is:
1. -105 ºC
2. -15 ºC
3. 0 ºC
4. 50 ºC
5. 200 ºC
If the temperature of the substance is held constant at -15 ºC, the phase change that would occur with a pressure increase from 1 atmosphere to 30 atmospheres is:
1. vaporization
2. condensation
3. sublimation
4. deposition
5. melting
6. freezing
Vaporization occurs by:
1. absorption of energy
2. release of energy
Melting occurs by:
1. absorption of energy
2. release of energy
Condensation occurs by:
1. absorption of energy
2. release of energy
Freezing (solidification) occurs by:
1. absorption of energy
2. release of energy
Deposition occurs by:
1. absorption of energy
2. release of energy
Sublimation occurs by:
1. absorption of energy
2. release of energy