Question

a general rule of thumb used by the pilot is for every 1000 feet of altitude, the temperature falls 3.5 fahrenheit. if the temperature at sea level is 78 fahrenheit, what would you expect the temperature to be at 10,000 feet in degree celsius with proper steps

Answer 1

35.0fahrenheit is the answer

Answer 2

A rule of thumb calculation for density altitude is-

the standard lapse rate of 2˚C per thousand feet. ... (standard temperature at sea level) 15 – 14= 1˚C (34˚F) is the standard temperature for 7000' MSL.