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What volume of gas is produced by vaporizing a given volume of dry ice?

What volume of carbon dioxide gas would be released from a one cubic centimeter cube of dry ice at room temperature?
Adam Smith (pinecone@sowega.net)

  1. How many grams of CO2 are in one cc of dry ice? The density of dry ice is about 1.5 g/mL, so 1 cc is about 1.5 g CO2.
  2. How many moles of CO2 are in that number of grams? The molecular weight of CO2 is about 44 g/mol, so 1.5 g is

    1.5 g CO2 × (1 mol CO2
    44 g CO2
    ) = 0.034091 mol CO2

  3. What volume of gas contains that many moles of gas? Assume that the gas behaves ideally. At room pressure (about 1 atm) and temperature (about 25°C, or 298 K),

    V = nRT/P
    V = (0.034 mol × 0.0821 L atm mol-1 K-1 × 298 K)/(1 atm)
    V = 8.3 × 10-1 L

Author: Fred Senese senese@antoine.frostburg.edu



General Chemistry Online! What volume of gas is produced by vaporizing a given volume of dry ice?

Copyright © 1997-2010 by Fred Senese
Comments & questions to fsenese@frostburg.edu
Last Revised 08/17/15.URL: http://antoine.frostburg.edu/chem/senese/101/gases/faq/co2-volume-from-dry-ice.shtml