If a Liter of CO₂ Is Compared to a Liter

question 26

Multiple Choice

If a liter of CO₂ is compared to a liter of H₂,both at 25 °C and one atmosphere pressure,then:

• A)the CO₂ and H₂ molecules have the same average speed
• B)there are more H₂ molecules than CO₂ molecules
• C)the average kinetic energy of the CO₂ molecules is greater than that of the H₂ molecules
• D)the CO₂ molecules are,on the average,moving more slowly than the H₂ molecules
• E)the mass of one liter of CO₂ equals the mass of one liter of H₂

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