050.03 Thermodynamics Flashcards
As a parcel of air cools, its ability to hold water vapor (increases/remains unaltered/decreases).
As a parcel of air cools, its ability to hold water vapor (decreases).
The term used to identify the process by which a solid changes to a gas is called (…).
The term used to identify the process by which a solid changes to a gas is called (sublimation or evaporation).
The atmosphere is absolutely stable when the ELR is (…).
The atmosphere is absolutely stable when the ELR is (less than 1.8°C per 1000 ft).
Mixing ratio is (…) per (…).
Mixing ratio is (the number of g of water vapour) per (kg of dry air).
Latent heat is (released/absorbed) during sublimation, melting and evaporation.
Latent heat is (absorbed) during sublimation, melting and evaporation.
If temperature of a saturated air parcel is decreased and its volume remains constant, the amount of water vapour will (remain constant/increase/decrease).
If temperature of a saturated air parcel is decreased and its volume remains constant, the amount of water vapour will (decrease).
The atmosphere is conditional unstable when the ELR is (…).
The atmosphere is conditional unstable when the ELR is (between 1.8°C and 3°C per 1000 ft).
When air reaches its saturation vapour pressure it immediately becomes slightly (warmer/colder).
When air reaches its saturation vapour pressure it immediately becomes slightly (warmer).
The term used to identify the process by which a liquid changes to a gas is called (…).
The term used to identify the process by which a liquid changes to a gas is called (evaporation).
Relative humidity can be estimated with the following formula:
RH = (…)
- T = actual temperature (°C)*
- Td = dew point (°C)*
Relative humidity can be estimated with the following formula:
RH = 100 - 5 • (T - Td)
- T = actual temperature (°C)*
- Td = dew point (°C)*
The term used to identify the process by which a solid changes to a liquid is called (…).
The term used to identify the process by which a solid changes to a liquid is called (melting).
Latent heat is (released/absorbed) during condensation, freezing and deposition.
Latent heat is (released) during condensation, freezing and deposition.
A given mass of air is saturated with water vapour. If temperature increases (relative humidity/the amount of water vapour) remains constant.
A given mass of air is saturated with water vapour. If temperature increases (the amount of water vapour) remains constant.
If unsaturated air is lifted until it reaches the condensation level, (max. vapour pressure/max. mixing ratio/actual mixing ratio) remains unchanged.
If unsaturated air is lifted until it reaches the condensation level, (actual mixing ratio) remains unchanged.
The atmosphere is absolutely unstable when the ELR is (…).
The atmosphere is absolutely unstable when the ELR is (greater than 3°C per 1000 ft).
