Chemistry, 17.09.2019 20:30 Orlandon220
Adecorative "ice" sculpture is carved from dry ice (solid co2) and held at its sublimation point of –78.5°c. consider the process in which a co2 sculpture, weighing 389 g, sublimes on a granite tabletop. the temperature of the granite is 12.0°c and the process occurs reversibly. assume a final temperature for the co2 vapor of –78.5°c. the enthalpy of sublimation of co2 is 26.1 kj/mol. calculate the entropy of sublimation for carbon dioxide (the system) j/kmol
Answers: 3
Chemistry, 21.06.2019 15:00
How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.
Answers: 2
Chemistry, 22.06.2019 22:00
Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.
Answers: 3
Adecorative "ice" sculpture is carved from dry ice (solid co2) and held at its sublimation point of...
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