A room has a volume of 50 m3 and is filled with air of an average molecular mass of 29 u. What is the mass of the air in the room at a pressure of 1.0 atm and temperature of 26°C? R = 0.082 L/atm/mol/K
a. 180 kg
b. 42 kg
c. 59 kg
d. 30 kg
e. 23 kg
c
You might also like to view...
Based on his star counts, Herschel placed the Sun in the ________ of our Galaxy
Fill in the blank(s) with correct word
Even Jupiter and Saturn experience auroras like those on Earth
a. True b. False Indicate whether the statement is true or false
Which source is the most luminous (or would be, if all its energy were output in visible light)?
a) The Sun. b) A quasar. c) A nuclear power plant. d) A gamma-ray burst. e) A supernova.
Why does the Cepheid "standard candle" have limited usefulness beyond 20 Mpc?
A) Distant galaxies are seen in the past, when Cepheid variables behaved differently than they do today. B) Distant galaxies are so young they do not contain Cepheids. C) Cepheids are too faint to be seen beyond that distance, even with HST. D) The light variability of Cepheids diminishes with distance so they do not appear to vary there. E) Older distant Cepheids are of Population II, where the period-luminosity relation no longer works.