Problem: Which gas is most dense at 1.00 atm and 298 K? CO2, N2O, or Cl2. Explain.

FREE Expert Solution

Gas density is directly proportional to molar mass and pressure, and inversely proportional to temperature (Equation [10.10] in the textbook). 


d=PMRT

  • molar mass of CO2 = 44.01 g/mol
  • molar mass of N2O = 44 g/mol
  • molar mass of Cl2 = 70.9 g/mol 
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Problem Details

Which gas is most dense at 1.00 atm and 298 K? CO2, N2O, or Cl2. Explain.

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