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;
24 Cards in this Set
- Front
- Back
|
Saturation |
The maximum amount of water vapour that can exist at a given temperature |
|
|
Humidity |
The amount of water vapour in a quantity of air |
|
|
Partial Pressure |
The pressure contributed by a single gas in a mixture of gases. |
|
|
Vapour Pressure |
Partial pressure exerted by water vapour |
|
|
Saturation Vapour Pressure |
The maximum water vapour pressure that can exist at a given temperature |
|
|
Supercooled |
Cooled below the temperature at which a substance would normally freeze, while remaining in a liquid state. |
|
|
Unsaturated |
The condition that occurs when the amount of water vapour in the air is lower than the saturation value |
|
|
Supersaturated |
The condition that occurs when the amount of water vapour in the air is higher than the saturation value. |
|
|
Absolute Humidity |
The mass of water vapour in a unit of volume of air |
|
|
Mixing Ratio |
The ratio of the mass of water vapour to the mass of dry air |
|
|
Specific Humidity |
The ratio of the mass of water vapour to the total mass of air |
|
|
Dew-Point Temperature |
The temperature to which the air must be cooled, at constant pressure, to reach saturation. |
|
|
Relative Humidity |
The ratio of the actual amount of water vapour in the air to the saturation value at the air's temperature |
|
|
Vapour Pressure Deficit |
The difference between the saturation vapour pressure and the actual vapour pressure. |
|
|
Dew-Point Depression |
The difference between the air temperature and the dew-point temperature. |
|
|
Hygrometer |
An instrument used to directly measure the amount of water vapour in the air, based on a variety of different methods |
|
|
Psychrometer |
An instrument used to measure the amount of water vapour in the air, based in the cooling produced by evaporation |
|
|
Dry-Bulb Thermometer |
The thermometer in a psychomotor that is used to measure air temperature |
|
|
Wet-Bulb Thermometer |
The thermometer in a psychomotor that is used to measure the wet-bulb temperature |
|
|
Wet-Bulb Temperature |
The temperature to which air will cool by evaporating water into it |
|
|
Depression of the Wet-Bulb |
The difference between the dry-bulb and the wet-bulb temperature |
|
|
Heat Capacity |
The amount of heat required to raise a unit volume of a substance by 1K. |
|
|
Humidex |
An index used in Canada to provide a measure of how warm it feels due to a combination of high temperature and high humidity. |
|
|
Wind Chill |
A measure of how cold it feels due to a combination of low temperature and high wind. |
