What is the specific gravity of CO2 at 27^oC and pressure 1 atm with respect to air of with density 1 g/L?(a) 1.23(b) 1.55(c) 1.78(d) 1.96I had been asked this question during an interview for a job.My question is from Ideal Gas Law in chapter Recycle, Bypass, Purge, Ideal Gases and Real Gases of Basic Chemical Engineering

What is the specific gravity of CO2 at 27^oC and pressure 1 atm with r

1.	What is the specific gravity of CO2 at 27^oC and pressure 1 atm with respect to air of with density 1 g/L?(a) 1.23(b) 1.55(c) 1.78(d) 1.96I had been asked this question during an interview for a job.My question is from Ideal Gas Law in chapter Recycle, Bypass, Purge, Ideal Gases and Real Gases of Basic Chemical Engineering
Answer» Right choice is (c) 1.78 The EXPLANATION: DENSITY of CO2 = PM/RT = 144/(0.0821300) = 1.78 g/L, => SPECIFIC GRAVITY = 1.78/1 = 1.78.

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