The temperature of 1.9 kg of water is 100.0°C, but the water is not boiling, because the external pressure acting on the water surface is 3.0 x 105 Pa. Using the vapor pressure curve for water given in the figure, determine the amount of heat that must be added to the water to bring it to the point where it just begins to boil. Pressure, Pa 4 x 105 3 x 105 2 x 105 1.01 105 0.53 105 0 -50 0 83 100 50 Temperature. C 100 °C 150 1.01 x 105 Pa 83 C 0.53 105 Pa

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The temperature of 1.9 kg of water is 100.0°C, but the water is not boiling, because the external pressure acting on the water surface
is 3.0 x 105 Pa. Using the vapor pressure curve for water given in the figure, determine the amount of heat that must be added to the
water to bring it to the point where it just begins to boil.
Pressure, Pa
4 x 105
3 x 105
2 x 105-
1.01 x 105
0.53 x 105
0
50
50
83 100
Temperature, C
100 °C
150
1.01 x 105 Pa
83 C
0.53 x 105 Pa
Transcribed Image Text:The temperature of 1.9 kg of water is 100.0°C, but the water is not boiling, because the external pressure acting on the water surface is 3.0 x 105 Pa. Using the vapor pressure curve for water given in the figure, determine the amount of heat that must be added to the water to bring it to the point where it just begins to boil. Pressure, Pa 4 x 105 3 x 105 2 x 105- 1.01 x 105 0.53 x 105 0 50 50 83 100 Temperature, C 100 °C 150 1.01 x 105 Pa 83 C 0.53 x 105 Pa
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