(26) Briefly describe the process of air circulation in a heated room with cool
ID: 116822 • Letter: #
Question
(26) Briefly describe the process of air circulation in a heated room with cool air flowing in from a window. (10pts) (27) (28) The amount of water vapor in the air is dependent on temperature. True or False. (29) Is humid air less dense than dry air? Support your answer with a clear explanation (10 pts) (30) The mode of heat transfer that is most prevalent in the atmosphere is is a measure of the kinetic energy of molecules and atoms (a) Conduction (b) Convection (c) Radiation (d) Advection (31) The transfer of heat through diffusion or collision of particles due to a temperature gradient is called la) Conduction (b) Convection (c) Radiation (d) Advection (32) The observed change in temperature with relation to altitude is called What is the unit of measurement of this term? (5 pts) (33) A saturated parcel of air will decrease in temperature with increase in altitude at a faster rate than dry (or unsaturated) air. True or False. Explain your answer, no more than three sentences. (5 pts) (34) what is the condition of the atmosphere when AT/dz (35) The height of the atmospheric boundary layer is higher in mid-afternoon than at night. True or False. Explain with no more than 3 sentences. (5 pts) (36) Suppose a small air parcel is 1 degree Celsius warmer than the air surrounding it at 100 m height. Will the parcel move downward, upward or remain stationary at 100 m. Why? (10 pts) (37) A thermal inversion occurs when Spts) (38) What type of thermal inversion is most likely to occur in cold nights? (a) Radiation (b) Subsidence (c) AdvectionExplanation / Answer
26) Convection is the heat transfer which happens in gases and liquids as a result of temperature and density differences.
Cool air has more denisty .
Warm air has less denisty.As a result of less denisty warm air rises.When the warm air rises , the cold air flows in through the window and takes its place and cools the room. The risen warm air escapes from the ventilator at the top.
So cold air continues to flow inside and the warmed air rises and escapes from the ventilator at the top.
In this way the air circulation happens by convection in a heated room with cool air flowing in from the window.
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