Study the following phase diagram of Substance X. 12- solid liquid gas 200 400 600 temperature (K) Use this diagram to answer the following questions. Suppose a small sample of pure X is held at 26. °C and 7.7 atm. (choose one) e What will be the state of the sample? Suppose the temperature is held constant at 26. °C but the pressure (choose one) is decreased by 2.2 atm. What will happen to the sample? Suppose, on the other hand, the pressure is held constant at 7.7 atm but the temperature is decreased by 229. °C. What will happen to the (choose one) sample? pressure (atm)

The pressure above a pure sample of solid Substance X at -10. °C is lowered. At what pressure will the sample melt? Use the phase diagram of X below to find your answer. pressure (atm) 04- 02- 6 0 atm solid liquid 400 temperature (K) Note: your answer must be within 0.025 atm of the exact answer to be graded correct. gas 600

Study the following phase diagram of Substance X. pressure (atm) 36 18 0. 0 solid liquid 200 gas 400 temperature (K) Use this diagram to answer the following questions. Suppose a small sample of pure X is held at - 165. °C and 26.2 atm What will be the state of the sample? Suppose the temperature is held constant at -165. °C but the pressure is decreased by 18.3 atm. What will happen to the sample? ✓ (choose one) C solid liquid gas î

Use the observation in the first column to answer the question in the second column. observation At 1 atm pressure, Substance E boils at 11. °C and Substance F boils at 30. °C. At 37 °C, Substance C has a vapor pressure of 89. torr and Substance D has a vapor pressure of 79. torr. The enthalpy of vaporization of Substance A is smaller than that of Substance B. question Which has a higher vapor pressure? Substance E Substance F Neither, E and F have the same vapor pressure. It's impossible to know without more information. Which has a higher enthalpy of vaporization? Substance C Substance D Neither, C and D have the same enthalpy of vaporization. It's impossible to know without more information. At any temperature where both substances are liquid, which has the higher vapor pressure? Substance A Substance B Neither, A and B have the same vapor pressure. It's impossible to know without more information. X Ś

A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady rate and the temperature recorded as time passes. Here is a graph of the results: temperature (°C) 160. 140. 120. 100. 80. 60. 0. 10. What is the boiling point of X ? Use this graph to answer the following questions: heat added (kJ/mol) 20. What phase (physical state) of X would you expect to find in the flask after 12 kJ/mol of heat has been added? 30. Пос (check all that apply) solid O liquid gas 40.

Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the temperature. Additionally, the values of these other properties of X I have been determined: melting point enthalpy of fusion temperature (°C) 120- 110- 100- 90- 80 70- 60- You may also assume X behaves as an ideal gas in the vapor phase. Suppose a small sample of X at 20 °C is put into an evacuated flask and heated at a constant rate until 10.0 kJ/mol of heat has been added to the sample. Graph the temperature of the sample that would be observed during this experiment. density 50+ 40 30- 20 65. °C 10.00 kJ/mol 3 2.80 g/cm³ (solid) 2.30 g/mL (liquid) 0 heat added (kJ/mol) 8 9 boiling point enthalpy of vaporization 10 heat capacity P 100. °C X 21.00 kJ/mol -1 38. J K mol (solid) 29. J.K¹ mol 48. J.K¹ mol 1 (liquid) (vapor) 2 00 ola Ar B

The temperature on a sample of pure X held at 1.13 atm and -9. °C is increased until the sample boils. The temperature is then held constant and the pressure is decreased by 0.39 atm. On the phase diagram below draw a path that shows this set of changes. 200 400 temperature (K) pressure (atm)

Study the following phase diagram of Substance X. pressure (atm) O STATES OF MATTER Using a phase diagram to predict phase at a given temperature... 12 solid Explanation 100 liquid 200 temperature (K) Use this diagram to answer the following questions. Check gas Suppose a small sample of pure X is held at -90. °C and 7.7 atm. What will be the state of the sample? Suppose the temperature is held constant at -90. °C but the pressure is decreased by 5.8 atm. What will happen to the sample? y pearson login - Yahoo Search Results Yahoo Search Results (choose one) (choose one) A

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