WAEC - Geography (2023 - No. 33)
What is the temperature around an aeroplane flying at an altitude of 4000 metres if the temperature on the earth surface is 40 oC?
26 oC
66 oC
14 oC
12 oC
Explication
Initial temperature = 40oC
Final temperature = ?
According to lapse rate
1000m ascent = 6.5oC decrease in temp.
4000m =x
4000 = 6.5 x 4=26.0oC
Final temp. = (40o -26o)C=14oC
Final temperature = ?
According to lapse rate
1000m ascent = 6.5oC decrease in temp.
4000m =x
4000 = 6.5 x 4=26.0oC
Final temp. = (40o -26o)C=14oC