If the outside air temperature is 27°C and the air density is 1.2 kg/m3, which of the following is the outside air pressure?

Question

Quizplus · Accepted Answer

The outside air pressure can be calculated using the ideal gas law, which states that pressure is equal to density times the gas constant times temperature. 
P = ρRT
P = 1.2 kg/m3 * 287 J/kgK * (27+273) K
P = 101352 Pa
Converting Pa to hPa:
P = 1013.52 hPa
Therefore, the outside air pressure is approximately 1013 hPa (Option D).

If the Outside Air Temperature Is 27°C and the Air