What would the air temperature inside a conventional jet airliner be,if outside air at an altitude of 10 km,pressure of 250 mb and a temperature of -60 C,is brought inside and compressed to a 1,000 mb pressure? (Hint: you may assume that 1,000 mb pressure is equivalent to 0 m altitude. )
A) -60 C
B) 0 C
C) 40 C
D) 60 C

Question

Quizplus · Accepted Answer

At an altitude of 10 km, the temperature outside the jet is -60°F/-51.1°C. When this air is brought inside and compressed to a pressure of 1000 mb (equivalent to sea level pressure), the temperature increases by approximately 1°C for every 100 mb increase in pressure. Therefore, the temperature inside the jet would be approximately 4°C warmer than the original outside temperature, which is around 40°F/4.4°C. Therefore, the correct option is C).

What Would the Air Temperature Inside a Conventional Jet Airliner