3 Awesome Dry Ice Experiments & Tricks

How to Do Awesome Dry Ice Experiments that Make Learning Fun

Dry ice (solid carbon dioxide) sublimes at the phase transition temperature of -78.0 °C. The enthalpy of sublimation for CO2 is 25.2 kJ/mol. Use this information to calculate the change in the entropy of the universe (in J/K) when 1.00 mol of CO2 sublimes in a room at 22.0 °C.Select one:a. 44b. -85.4c. 129d. 85.4e. -44

SOLVED:A piece of dry ice (solid carbon dioxide) with a mass of 5.50  g is placed in a 10.0 - L vessel that already contains air at 705 torr and 24^∘ C. After the carbon dioxide has totally sublimed, what is the partial pressure of the resultant CO2 gas, and the total pressure in the container at 24^∘ C ?

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