draw the pressure temperature phase diagram of H2O. explain the equilibrium compositions of each region, as...
draw the pressure temperature phase diagram of H2O. explain the equilibrium compositions of each region, as well as the slopes of the phase boundary lines
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draw the pressure temperature phase diagram of H2O.
explain the equilibrium compositions of each region, as...
2) For the following Cu-Ni phase diagram, determine the compositions of each phase for an overall...
2) For the following Cu-Ni phase diagram, determine the compositions of each phase for an overall composition of 60 wt% Ni at 1300 °C. What happens when the temperature is increased to 1500 °C? 1600 1500 1400 a T(°C)1300 + 1200 7 1100 1000 20 L 40 60 80 wt% Ni 100
(a) Consider the boundary between two distinct phases in a pressure-temperature phase diagram. Derive the Clausius-Clap...
(a) Consider the boundary between two distinct phases in a pressure-temperature phase diagram. Derive the Clausius-Clapeyron equation for the slope of the phase boundary, dP L TAV Define all the symbols in the equation (b) In a lecture a video was shown of ice regelation, where a wire passed through a block of ice. Use the Clausius-Clapeyron equation to show that regelation is related to the fact that ice floats on water.
(a) Consider the boundary between two distinct phases...
Draw a phase diagram of temperature vs. % composition for a mixture that has a minimum...
Draw a phase diagram of temperature vs. % composition for a mixture that has a minimum boiling azeotrope. Explain the problem that occurs in distillation because of the azeoptrope.
Draw a phase diagram of temperature vs. % composition for a mixture that has a minimum boiling azeotrope. Explain the problem that occurs in distillation because of the azeoptrope.
2. With the aid of a chemical potential versus temperature phase diagram, explain why graphite sublimes...
2. With the aid of a chemical potential versus temperature phase diagram, explain why graphite sublimes rather than melts when it is heated from 300 K to 3825 K at standard pressure. Also draw a pT phase diagram that is compatible with this observation.
Consider the ternary phase diagram as the scale is given as mass fractions. The equilibrium concentrations...
Consider the ternary phase diagram as the scale is given as mass
fractions. The equilibrium concentrations for two phases of the
ternary phase system of ethanol (A) water (B) and ethyl acetate (C)
at 20 °C and atmospheric pressure are given in Table below.
Phase a Phase B wt%A wt%B wt%C wt%A wt%B wt%C 0 92 8 0 3 97 7.6 84 8.4 5.5 5.3 89.2 14 76 10 10 8.6 81.4 20 63 18 18 21 61 23 46...
2) From the Cu-Ag phase diagram, determine the melting temperature of pure Cu and pure Ag....
2) From the Cu-Ag phase diagram, determine the melting temperature of pure Cu and pure Ag. Determine also the eutectic temperature. 3) There are two liquidus line on the phase diagram. Let us assume that you have measured several cooling curves of samples covering from 0-100 wt% Ag composition range. The data points (phase transition points) on both liquidus lines are determined as in the following table: Left liquidus line Right liquidus line Wt% Ag Temperature (°C) Wt% Ag Temperature...
6. (4 pts) Answer the following using the phase diagram for H2O below a. At a...
6. (4 pts) Answer the following using the phase diagram for H2O below a. At a constant pressure of 1 atm, what phase change occurs when water is heated from-20 °C to 20 °C? b. At a constant temperature of 34 °C, what phase change occurs when the pressure is reduced from 1 atm to 0.005 atm? c. Does the boiling point of water increase or decrease as the pressure is changed from 1 atm to 200 atm? d. Use...
There is a compound Z that exists in the liquid phase at room temperature and pressure...
There is a compound Z that exists in the liquid phase at room temperature and pressure with a vapor pressure of 0.2 atm. When 250 ml of Z is mixed with 250 ml of water the resulting mixture has a lower vapor pressure than predicted. Explain what this means in terms of the intermolecular forces of the solute(Z) and the solvent ( water). Is Z likely to participate in hydrogen bonding? Why or why not. When pure compound Z (as...
Interpretation Questions Q5: Phase diagram is a graphical representation of the equilibrium phases as a fuction...
Interpretation Questions Q5: Phase diagram is a graphical representation of the equilibrium phases as a fuction of temperature, pressure, and composition. The following phase diagram represents the state of matter of a substance in relation to the temperature and pressure 1.000 100 10 Solid Liquid Pressure am) 1.04 0.1 0.01 Vapor 0.001 40 60 80 100 120 140 160 180 Temperature 1. Identify the sublimation point at standard atmospheric pressure. How many intensive vasriable(s) we need to identify in order...
1 picture- problem 2 other pictures- phase diagrams for problem 1. Draw a phase diagram for...
1 picture- problem
2 other pictures- phase diagrams for problem
1. Draw a phase diagram for a binary eutectic alloy with solid solubility, naming and describing the significance of the main features. The binary alloy system of metals A and B contains two intermediate (intermetallic) phases A B and AB2 of narrow composition range, each of which forms by a peritectic reaction A cutectic point also exists, at 85at% B. The melting point of A is higher than that of...
2) For the following Cu-Ni phase diagram, determine the compositions of each phase for an overall composition of 60 wt% Ni at 1300 °C. What happens when the temperature is increased to 1500 °C? 1600 1500 1400 a T(°C)1300 + 1200 7 1100 1000 20 L 40 60 80 wt% Ni 100
(a) Consider the boundary between two distinct phases in a pressure-temperature phase diagram. Derive the Clausius-Clapeyron equation for the slope of the phase boundary, dP L TAV Define all the symbols in the equation (b) In a lecture a video was shown of ice regelation, where a wire passed through a block of ice. Use the Clausius-Clapeyron equation to show that regelation is related to the fact that ice floats on water.
(a) Consider the boundary between two distinct phases...
Draw a phase diagram of temperature vs. % composition for a mixture that has a minimum boiling azeotrope. Explain the problem that occurs in distillation because of the azeoptrope.
Draw a phase diagram of temperature vs. % composition for a mixture that has a minimum boiling azeotrope. Explain the problem that occurs in distillation because of the azeoptrope.
2. With the aid of a chemical potential versus temperature phase diagram, explain why graphite sublimes rather than melts when it is heated from 300 K to 3825 K at standard pressure. Also draw a pT phase diagram that is compatible with this observation.
Consider the ternary phase diagram as the scale is given as mass
fractions. The equilibrium concentrations for two phases of the
ternary phase system of ethanol (A) water (B) and ethyl acetate (C)
at 20 °C and atmospheric pressure are given in Table below.
Phase a Phase B wt%A wt%B wt%C wt%A wt%B wt%C 0 92 8 0 3 97 7.6 84 8.4 5.5 5.3 89.2 14 76 10 10 8.6 81.4 20 63 18 18 21 61 23 46...
2) From the Cu-Ag phase diagram, determine the melting temperature of pure Cu and pure Ag. Determine also the eutectic temperature. 3) There are two liquidus line on the phase diagram. Let us assume that you have measured several cooling curves of samples covering from 0-100 wt% Ag composition range. The data points (phase transition points) on both liquidus lines are determined as in the following table: Left liquidus line Right liquidus line Wt% Ag Temperature (°C) Wt% Ag Temperature...
6. (4 pts) Answer the following using the phase diagram for H2O below a. At a constant pressure of 1 atm, what phase change occurs when water is heated from-20 °C to 20 °C? b. At a constant temperature of 34 °C, what phase change occurs when the pressure is reduced from 1 atm to 0.005 atm? c. Does the boiling point of water increase or decrease as the pressure is changed from 1 atm to 200 atm? d. Use...
There is a compound Z that exists in the liquid phase at room temperature and pressure with a vapor pressure of 0.2 atm. When 250 ml of Z is mixed with 250 ml of water the resulting mixture has a lower vapor pressure than predicted. Explain what this means in terms of the intermolecular forces of the solute(Z) and the solvent ( water). Is Z likely to participate in hydrogen bonding? Why or why not. When pure compound Z (as...
Interpretation Questions Q5: Phase diagram is a graphical representation of the equilibrium phases as a fuction of temperature, pressure, and composition. The following phase diagram represents the state of matter of a substance in relation to the temperature and pressure 1.000 100 10 Solid Liquid Pressure am) 1.04 0.1 0.01 Vapor 0.001 40 60 80 100 120 140 160 180 Temperature 1. Identify the sublimation point at standard atmospheric pressure. How many intensive vasriable(s) we need to identify in order...
1 picture- problem
2 other pictures- phase diagrams for problem
1. Draw a phase diagram for a binary eutectic alloy with solid solubility, naming and describing the significance of the main features. The binary alloy system of metals A and B contains two intermediate (intermetallic) phases A B and AB2 of narrow composition range, each of which forms by a peritectic reaction A cutectic point also exists, at 85at% B. The melting point of A is higher than that of...
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