Consider two identical 10.0 L flasks one containing CH_4(g) and the other contai

Question

Consider two identical 10.0 L flasks one containing CH_4(g) and the other containing O_2(g). Both flasks are at 0 degree C and 4.0 atm. The density of the gas in the flask with CH_4 is _____the flask with O_2. (A) the same as (B) less then (C) greater than (D) not related to What accounts for the limitations of the ideal gas law? I. Real gas particles occupy space II. Real gas particles are attracted to each other. (A) Only I (B) Only II (C) Neither I II (D) Both I and II The graph shown have is for the first order decomposition of N_2O_5. What is the average rate of the reactions is the interval t = 0 to t = 3 hours? (A) 0.27 M middot h^-1 (B) 0.60 M middot h^-1 (C) 0.67 M middot h^-1 (D) 0.90 M middot h^-1

Explanation / Answer

Q36.

PV = nRT

n = mass/MW; D = mass/V

D = P*MW/(RT)

D1 = 4*16/(0.082*273) = 2.85892 g/L for CH4

D2  = 4*32/(0.082*273) = 5.712 g/L for O2

then, clearly

the density of CH4 is greater than O2

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