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29 June, 02:14

Which of the following gases has a density of 0.715g/L at STP

a) He

b) CO2

c) CO

d) CH4

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Answers (1)
  1. 29 June, 04:46
    0
    CO2 is the gas which has high density of 0.715/L at STP.

    Explanation:

    PV=nRT

    at STP,

    P, T=constant

    V=Km/M

    1/K=m/V*1/M=S*1/M

    therefore,

    The molar mass is more, as well as the density is also greater

    Hence Only CO2 has greater mass and greater density.
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