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Ten pounds of CO 2 at room temperature (80 F) are stored in a fire extinguisher that has a volume of 4.0 ft 3 .

Ten pounds of CO2 at room temperature (80 °F) are stored in a fire extinguisher that has a volume of 4.0 ft3. How much heat must be transferred from the extinguisher so that 40 % of the CO2 becomes liquid?


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