Question
In a closed container of constant volume, the pressure of water exhibits an interesting dependence on temperature -
The point D (273.16 K,0.006 atm) is called the triple point, Tp, of water, where all there phases coexist. What is the observed phase change when the temperature is increased from -100C to +100C, while maintaining a constant pressure of 0.006 atm?
The point D (273.16 K,0.006 atm) is called the triple point, Tp, of water, where all there phases coexist. What is the observed phase change when the temperature is increased from -100C to +100C, while maintaining a constant pressure of 0.006 atm?
Answer: Option C
:
C
Along the constant pressure line of P=0.006, we have ice (solid H2O) on the left of the triple point, and steam (gaseous H2O) on the right.
Thus, as we increase the temperature from below Tpto above Tp, we observe a solid → gas phase transition, i.e., we see ice directly turning into gas without going through the water phase. Magical!
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:
C
Along the constant pressure line of P=0.006, we have ice (solid H2O) on the left of the triple point, and steam (gaseous H2O) on the right.
Thus, as we increase the temperature from below Tpto above Tp, we observe a solid → gas phase transition, i.e., we see ice directly turning into gas without going through the water phase. Magical!
Was this answer helpful ?
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