The temperature and pressure at which ice, liquid water and water vapour can exist together are

0°C, 1atm

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2°C, 4.7atm

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0°C, 4.7mm

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2°C, 4.7mm

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Solution

The correct option is C
0°C, 4.7mm

All the three phases of water can coexist at 0 $^{\circ}$ C & 4.7 mm pressure.

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Q. The temperature and pressure at which ice, liquid water and water vapour can exist together are

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mole of ice at

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A sample of air contains nitrogen, oxygen and saturated with water vapour under a total pressure of 640 mm. If the vapour pressure of water at that temperature is 40 mm and the molecular ratio of $N_{2} : O_{2}$ is 3 : 1. Find the partial pressure of nitrogen in the sample.