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What is the molecular mass of an ideal gas with pressure 1 atm, and density 10 g/L at temperature 27^oC?

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What is the molecular mass of an ideal gas with pressure 1 atm, and density 10 g/L at temperature 27^oC?

(a) 84.5 g

(b) 135.1 g

(c) 186.8 g

(d) 246.3 g

The question was posed to me by my school principal while I was bunking the class.

My doubt is from Ideal Gas Law topic in portion Recycle, Bypass, Purge, Ideal Gases and Real Gases of Basic Chemical Engineering

1 Answer

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Right option is (d) 246.3 g

For explanation: M = dRT/P = 10*0.0821*300/1 = 246.3 g.

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