ma 50. A at - E O P iii E 46. O Phase Diagram for Walter The phase diagram for w
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Question
ma 50. A at - E O P iii E 46. O Phase Diagram for Walter The phase diagram for water is shown in FIGURE 17-37. (a) What is the temperature T, on the phase diagram? (b) What is the temperature T, on the phase diagram? (c) What happens to the melting/freezing temperature of water if atmo- spheric pressure is decreased? Justify your answer by referring to the phase diagram. (d) What happens to the boiling/condensation temperature of water if atmospheric pressure is increased? Justify your answer by referring to the phase diagram. 52. A of ter no ple Solid Liquid Pressure, P(kPa) tum the tha is the Temperature, TC)Explanation / Answer
(a) From the phase diagram of water, temperatuare is T1 =0 degrees Celsius because water exists in solid (ice)and liquid form at this temperature.
(b) The Temperature T2 from graph is 100 degreesCelsius beacause here water exists in both liquid and gaseousform.
(c) If atm pressure is increased, then the melting / freezing tempof water DECREASES because the fusion curve has a positive slope.
(d) The boiling/condensation temperature of water increases if atm pressure is increased because the slope of vapor pressure curve has positive slope.
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