11.59 Referring to Figure 11.28, describe all the phase changes that would occur in each of the following cases: (a) Water vapor originally at 0.005 atm and -0.5°C is slowly com- pressed at constant temperature until the final pressure is 20 atm. (b) Water originally at 100.0 °C and 0.50 atm is cooled at constant pressure until the temperature is -10 °C. The Phase Diagrams of H20 and CO2 Figure 11.28 shows the phase diagram of H2O. Because of the large range of pressures cov- red in the diagram, a logarithmic scale is used to represent pressure. The melting curve lue line) of H2O is atypical, slanting slightly to the left with increasing pressure, indi- cating that for water the melting point decreases with increasing pressure. This unusual behavior occurs because water is among the very few substances whose liquid form is more compact than its solid form, as we learned in Section 11.2. Figure 11.28 Phase diagram of H20. Note that a linear scale is used to represent temperature and a logarithmic scale to represent pressure. 103 Supercritical fluid Liquid 102 Critical point (374.4 °C, 217.7 atm) 10 1 Solid 10-1 Gas 10-2 Triple point (0.0098 °C, 0.00603 atm) 10-3 10-4 -200 600 400 200 0 Temperature (C) Pressure (atm)

11.59 Referring to Figure 11.28, describe all the phase changes that would occur in each of the following cases: (a) Water vapor originally at 0.005 atm and -0.5°C is slowly com- pressed at constant temperature until the final pressure is 20 atm. (b) Water originally at 100.0 °C and 0.50 atm is cooled at constant pressure until the temperature is -10 °C. The Phase Diagrams of H20 and CO2 Figure 11.28 shows the phase diagram of H2O. Because of the large range of pressures cov- red in the diagram, a logarithmic scale is used to represent pressure. The melting curve lue line) of H2O is atypical, slanting slightly to the left with increasing pressure, indi- cating that for water the melting point decreases with increasing pressure. This unusual behavior occurs because water is among the very few substances whose liquid form is more compact than its solid form, as we learned in Section 11.2. Figure 11.28 Phase diagram of H20. Note that a linear scale is used to represent temperature and a logarithmic scale to represent pressure. 103 Supercritical fluid Liquid 102 Critical point (374.4 °C, 217.7 atm) 10 1 Solid 10-1 Gas 10-2 Triple point (0.0098 °C, 0.00603 atm) 10-3 10-4 -200 600 400 200 0 Temperature (C) Pressure (atm)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

At roughly what pressure, P, and temperature, T, will Carbon phase diagram diamond, graphite, and liquid carbon all exist in equilibrium? 106– Solid I (diamond) 10°– Liquid P = atm 10ª– 103- Solid II (graphite) 10²- Gas T = K 10- 1- 1000 2000 3000 4000 5000 6000 T (K) Which solid form of carbon is more dense? diamond O graphite P (bar)
Find the FALSE statement regarding the phase diagram shown below. F D. Y X E 1.0 A Temperature (*C) Pressure (atm)
What is the vapor pressure of a liquid (in mmHg) at 305.13 K if its AHvap = 28.9 kJ/mol and its normal boiling point is 341.88 K?
The vapor pressure of ethanol (C2H5OH) at 19 °C is 40.0torr. A 1.00-g sample of ethanol is placed in a 2.00 L containerat 19 °C. If the container is closed and the ethanolis allowed to reach equilibrium with its vapor, how manygrams of liquid ethanol remain?
please explain
None
Toluene (C7H8) is a common laboratory solvent with ΔH°vap = 38.1 kJ/mol. If the vapor pressure of toluene at 89.6 °C is 380. torr, at what temperature, in °C, will toluene have a vapor pressure of 507 torr?
The vapor pressure of liquid SO, is 281.1 mmHg at a temperature of 242.0 K. The enthalpy of vaporization, AH, What is the vapor pressure of SO2 at a temperature of 250.0 K, in mmHg? for this liquid is 24.9 kJ/mol. чар"