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Question 10 (2 points) Consider the phase diagram of methane shown below below. 10 Supercritical fluid...
3) (19 pnts) The following questions refer to the phase diagram of methane. (note the Log...
3) (19 pnts) The following questions refer to the phase diagram of methane. (note the Log scale of the pressure axis) Supercritical fluid Liquid Pressure (atm) Critical point (31.1 °C, 73.0 atm) Solid Triple point (-56.4 c, 5.11 atm) 10-22 -200 - 100 0 100 Temperature (°C) 200 a) What state is methane in at 10 atm and 0 °C: solid, liquid, or gas (circle one)? b) The atmosphere of Titan, a moon of Saturn, possesses -5% methane. Titan has...
2. Below is the phase diagram for CO2 Critical point Supercritical Liquid (31°C, 73 atm) fluid...
2. Below is the phase diagram for CO2 Critical point Supercritical Liquid (31°C, 73 atm) fluid Pressure, atm Triple point (-57°C, 5.1 atm) Sublimation point Gas at 1 atm (-78°C) - 100 -80 -60 0 20 40 60 -40 -20 Temperature, a) What phase transition occurs at P = 10.00 atm when CO2 is cooled from -10°C to -45°C? (2 pts) b) What phase transition occurs at T = -50°C when CO2 experiences a pressure change from 100 atm to...
5) Consider the phase diagram for carbon dioxide(10). Supercritical fluid Solid Liquid Pressure (atm) -78.5 -56.4...
5) Consider the phase diagram for carbon dioxide(10). Supercritical fluid Solid Liquid Pressure (atm) -78.5 -56.4 Temperature (°C)— a) What is the critical temperature for carbon dioxide? b) What is the critical pressure for carbon dioxide? c) What phase(s) is/are present at -10°C and 30 atm. d) What phase(s) is/are present at -60°C and 10 atm. - e) What phase(s) is/are present at-78.5°C and 1 atm. f) What phase(s) is/are present at-56.4°C and 5.11 atm. g) What is the normal...
Among other things, phase diagrams help us predict those conditions under which a substance will exist...
Among other things, phase diagrams help us predict those
conditions under which a substance will exist as a supercritical
fluid. Supercritical CO2 is especially useful as it is very
effective at dissolving nonpolar oils which constitute many of the
flavouring or odor-causing compounds in foods. For example, food
companies use supercritical CO2 to extract caffeine from
coffee.
a) Use the following data to label the following points on the
phase diagram for CO2: Triple point -57°C, 5.1 atm, Normal
sublimation...
According to the phase diagram for CO2, shown here, what state will be most prevalent at...
According to the phase diagram for CO2, shown here, what state will be most prevalent at 110 atm and 350 C? 102 atm V P 0.058 atm -7.3°C 315°C T Solid Liquid Gas Supercritical Fluid
Question 22 (1 point) (c) (d) Which transition represents a decrease in entropy of the system?...
Question 22 (1 point) (c) (d) Which transition represents a decrease in entropy of the system? (b) → (c) O (d) - (c) (a) → (c) (c) → (b) Question 20 (1 point) Ethanol melts at -114 °C and boils at 78 °C at a constant pressure of 1 atm. What state of matter must a sample of ethanol be in at 100°C and 1 atm? solid and liquid in equilibrium gas liquid O solid liquid and gas in equilibrium...
9. The phase diagram for Xenon is provided opposite Liquid What phase change(s) occur as Xenon...
9. The phase diagram for Xenon is provided opposite Liquid What phase change(s) occur as Xenon is cooled from room temperature to -150°C at 2 atm pressure 100 Solid 10 Deposition only Condensation then Freezing а) b) Gas c) Melting then Vaporisation 0.1 d) Condensation then Sublimation 0.01 Sublimation only е) -180 -120 -60 0 60 Temperature (C) 10. A schematic phase diagram is shown below. The temperature and pressure defining the (solid,liquid,gas) triple point (Tip,Pp) and the critical point...
The phase diagram for a pure substance is shown below. A substance at point H is:...
The phase diagram for a pure substance is shown below. A substance at point H is: 760 •A . •G Pressure (mm Hg) 0 Temperature (°C) O in the gas phase O in the solid phase O in the liquid phase O at equilibrium between solid and liquid at equilibrium between liquid and gas
11. List the order of phase changes that would occur based on the phase diagram of...
11. List the order of phase changes that would occur based on the phase diagram of water under the following circumstances: critical point liquid Pressure (atm) 0.1- solid vapour (gas) triple point 0.0012 / 100 200 300 400 500 Temperature (K) 600 700 a. Water vapor originally at 200 atm and 150°C is slowly allowed to expand at a constant temperature until the final pressure is 0.005 atm. b. Water originally at 100.0°C and 0.50 atm is cooled at a...
2. Consider the phase diagram of compound Z below: Pressure 1.00 lata A 6.5 Temperature a....
2. Consider the phase diagram of compound Z below: Pressure 1.00 lata A 6.5 Temperature a. Label the areas representing solid, liquid, and gas. b. The substance is at point A and the pressure drops to 0.5 atm. What state change will it undergo? (boiling, melting, freezing, etc.)
3) (19 pnts) The following questions refer to the phase diagram of methane. (note the Log scale of the pressure axis) Supercritical fluid Liquid Pressure (atm) Critical point (31.1 °C, 73.0 atm) Solid Triple point (-56.4 c, 5.11 atm) 10-22 -200 - 100 0 100 Temperature (°C) 200 a) What state is methane in at 10 atm and 0 °C: solid, liquid, or gas (circle one)? b) The atmosphere of Titan, a moon of Saturn, possesses -5% methane. Titan has...
2. Below is the phase diagram for CO2 Critical point Supercritical Liquid (31°C, 73 atm) fluid Pressure, atm Triple point (-57°C, 5.1 atm) Sublimation point Gas at 1 atm (-78°C) - 100 -80 -60 0 20 40 60 -40 -20 Temperature, a) What phase transition occurs at P = 10.00 atm when CO2 is cooled from -10°C to -45°C? (2 pts) b) What phase transition occurs at T = -50°C when CO2 experiences a pressure change from 100 atm to...
5) Consider the phase diagram for carbon dioxide(10). Supercritical fluid Solid Liquid Pressure (atm) -78.5 -56.4 Temperature (°C)— a) What is the critical temperature for carbon dioxide? b) What is the critical pressure for carbon dioxide? c) What phase(s) is/are present at -10°C and 30 atm. d) What phase(s) is/are present at -60°C and 10 atm. - e) What phase(s) is/are present at-78.5°C and 1 atm. f) What phase(s) is/are present at-56.4°C and 5.11 atm. g) What is the normal...
Among other things, phase diagrams help us predict those
conditions under which a substance will exist as a supercritical
fluid. Supercritical CO2 is especially useful as it is very
effective at dissolving nonpolar oils which constitute many of the
flavouring or odor-causing compounds in foods. For example, food
companies use supercritical CO2 to extract caffeine from
coffee.
a) Use the following data to label the following points on the
phase diagram for CO2: Triple point -57°C, 5.1 atm, Normal
sublimation...
According to the phase diagram for CO2, shown here, what state will be most prevalent at 110 atm and 350 C? 102 atm V P 0.058 atm -7.3°C 315°C T Solid Liquid Gas Supercritical Fluid
Question 22 (1 point) (c) (d) Which transition represents a decrease in entropy of the system? (b) → (c) O (d) - (c) (a) → (c) (c) → (b) Question 20 (1 point) Ethanol melts at -114 °C and boils at 78 °C at a constant pressure of 1 atm. What state of matter must a sample of ethanol be in at 100°C and 1 atm? solid and liquid in equilibrium gas liquid O solid liquid and gas in equilibrium...
9. The phase diagram for Xenon is provided opposite Liquid What phase change(s) occur as Xenon is cooled from room temperature to -150°C at 2 atm pressure 100 Solid 10 Deposition only Condensation then Freezing а) b) Gas c) Melting then Vaporisation 0.1 d) Condensation then Sublimation 0.01 Sublimation only е) -180 -120 -60 0 60 Temperature (C) 10. A schematic phase diagram is shown below. The temperature and pressure defining the (solid,liquid,gas) triple point (Tip,Pp) and the critical point...
The phase diagram for a pure substance is shown below. A substance at point H is: 760 •A . •G Pressure (mm Hg) 0 Temperature (°C) O in the gas phase O in the solid phase O in the liquid phase O at equilibrium between solid and liquid at equilibrium between liquid and gas
11. List the order of phase changes that would occur based on the phase diagram of water under the following circumstances: critical point liquid Pressure (atm) 0.1- solid vapour (gas) triple point 0.0012 / 100 200 300 400 500 Temperature (K) 600 700 a. Water vapor originally at 200 atm and 150°C is slowly allowed to expand at a constant temperature until the final pressure is 0.005 atm. b. Water originally at 100.0°C and 0.50 atm is cooled at a...
2. Consider the phase diagram of compound Z below: Pressure 1.00 lata A 6.5 Temperature a. Label the areas representing solid, liquid, and gas. b. The substance is at point A and the pressure drops to 0.5 atm. What state change will it undergo? (boiling, melting, freezing, etc.)
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