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Q. |
The triple point for carbondioxide is at about -56.7 C and about 5 atm, pressure. It means that |
A. | Mass transfer at triple point is maximum |
B. | When CO2 is exposed to a below 5 atmosphere pressure only solid and liquid phase exist together |
C. | Above 56.7 C CO2 exists only as a liquid |
D. | Below 57.7 C CO2 exists only in liquid form |
E. | When solid CO2 is exposed to 1 atm pressure it begins to change directly to gas |
Answer» E. When solid CO2 is exposed to 1 atm pressure it begins to change directly to gas |
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