Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
11 Cards in this Set
- Front
- Back
|
Pure Substance |
A system is composed of pure substance if: 1) homogenous in composition 2)homogenous in chemical aggregation 3)invariable in chemical aggregation 1) proportion of the constituent elements of the substance should be same throughout the system 2) constituent elements of the substance should be combined in the similar manner in all samples of the system. 3) the state of homogeneity should not change with time |
|
|
Ideal gas |
Gases having no forces of molecular attraction. A gas which follows gas laws at all ranges of pressures and temperatures. |
|
|
Critical point |
At a point, length of pressure becomes 0, saturated liquid state and saturated vapor state coincide which is critical point. At this point both saturated liquid and saturated vapour have identical properties. |
|
|
Saturation Temperatue |
For a given pressure, the temperature at which phase change(liquid to vapor or vapor to liquid) takes place. Eg 100 C for water at 1atm |
|
|
Saturation Pressure |
For the given pressure, the pressure at which phase change occurs |
|
|
Saturated liquid |
The state of substance at which evaporation just starts during heating or condensation just starts during cooling |
|
|
Saturated vapor |
The state of substance at which evaporation just completes or condensation just starts |
|
|
compressed liquid or subcooled liquid |
When saturated liquid is further cooled or compressed |
|
|
superheated vapour |
when saturated vapor is further heated or expanded |
|
|
Quality |
The ratio of mass of saturated vapor to the total mass of the two phase mixture x = mg/mg+ml |
|
|
Moisture content |
The ratio of mass of saturated liquid to the total mass of two phase mixture y = ml/ml+mg |
