1–8

1–8 Determine the mass and the weight of the air contained in
a room whose dimensions are 6 m 6 m 8 m. Assume the
density of the air is 1.16 kg/m3. Answers: 334.1 kg, 3277 N
ANS
1-8The interior dimensions of a roomare given. The mass and weightof the air inthe room are to be
determined.
Assumptions The densityof air isconstantthroughoutthe room.
Properties The densityof air isgiven tobe ρ= 1.16 kg/m3.Analysis The mass of the air in the roomis