number 19 What volume (L) would 1 mole of an ideal gas occupy at 100 degree C an

Question

number 19

What volume (L) would 1 mole of an ideal gas occupy at 100 degree C and 70 Pa? a. 5L b. 45L c. 55L d. 104 L For an air pressure of 135 kPa and a temperature of 400 K. what is most nearly the specific volume of air in m^3/kg? Assume air is 80% N_2 and 20% O_2 a. 119.13 m^3/kg b. 2.35 m^3/kg c. 095 m^3/kg d. 11.76 m^3/kg A 1 m^3 sample of air was found to certain 0.03 ppm SO_2 T = 25 degree C & P = 103.19 kPa. The SO_2 concentration is mu g/m^3 is a. 2.542.651 mu g/m b. 28.420 mu.g/m c. 0.213 mu g/m d. 213.167 mu.g/m

Explanation / Answer

answer : c) 0.085 m3/kg

pressure = 135 Kpa = 1.332 atm

moles of air = 80 / 28 + 20 / 32 = 3.482

temperature = 400 K

P V = n R T

1.332 x V = 3.482 x 0.0821 x 400

V = 85.82 L

specific volume = volume / mass

                         = 0.085 m3/kg

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