Q:

Is CO2 heavier than air?

A:

Carbon dioxide, also known by the chemical formula CO2, has a higher density than the other gases found in air, which makes CO2 heavier than air. Air is composed of approximately 78 percent nitrogen, 21 percent oxygen, and less than 1 percent of other gases.

Density is defined as mass per unit volume of a substance, expressed in kilograms per cubic meter. At standard temperature and pressure, the combined density of air is 1.29 kilograms per cubic meter. By contrast, carbon dioxide has a density of 1.97 kilograms per cubic meter - the highest density of all the constituent gases. Atmospheric mixing keeps the chemicals in air aloft.

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Related Questions

  • Q:

    Is nitrogen heavier than air?

    A:

    Nitrogen is the major constituent of Earth's atmosphere, so it is, in a way, exactly as heavy as air. Though nitrogen makes up the bulk of the atmosphere by volume, almost 21 percent of the air is composed of molecular oxygen. To determine nitrogen's weight relative to air, it is important to determine whether the nitrogen in the atmosphere is lighter or heavier than the oxygen.

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  • Q:

    What is Co(NO2)2?

    A:

    Co(NO2)2 is the chemical formula for cobalt nitrite. Nitrites are compounds derived from nitrous acid. In the case of cobalt nitrite, the negative NO2 ion is joined ionically with a positive cobalt(II) ion to form an ionic compound.

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  • Q:

    Is CO2 polar or nonpolar?

    A:

    Carbon dioxide, which has the chemical formula CO2, is non-polar. The symmetrical nature of the carbon dioxide bonds cancels the dipole, which is why carbon dioxide is non-polar.

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  • Q:

    What is the partial pressure of CO2?

    A:

    The partial pressure of CO2 in Earth's atmosphere is 0.3 millimeters of mercury. Partial pressures depend upon the particular mixtures of gases involved. Inside human blood vessels, the partial pressure of CO2 or carbon dioxide is much higher because the mixture of gases inside human blood is different.

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