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Number 5 is an indication which of the following: 100 Temperature (°C) 50 Time --- The...
Find the final temperature and mass in each phase when 50 kJ of heat is added...
Find the final temperature and mass in each phase when 50 kJ of heat is added to 1 kg of a solid at 90 K if its melting temperature is 100 K, its boiling temperature is 200 K, its specific heat as a solid is 1000 J/kg·K, and as a liquid is 2000 J/kg·K, and its latent heat of fusion is 100 kJ/kg.
Enthalpies of Phase Changes Select the defined quantity (using the drop boxes) which is needed to...
Enthalpies of Phase Changes Select the defined quantity (using the drop boxes) which is needed to calculate how much energy is absorbed by the sample during each of the following changes. 75 g of solid iron at its melting point (1535 °C) changes to molten iron at 1535 °C 75 g of molten gold at 1064 °C (its freezing point) changes to solid gold at 1064 °C 775 g of liquid butane (C4H10) at -0.5 °C (its boiling point) changes...
Percent weight of material A 50 75 25 Melting temperature of material A Liquid Liquid and...
Percent weight of material A 50 75 25 Melting temperature of material A Liquid Liquid and solid Melting temperature of material B Solid 0 25 50 Percent weight of material B 75 100 Consider an alloy of two soluble components A and B shown in the phase diagram. Determine the masses of the alloy that are in liquid and solid phases at a given temperature if the total mass of the alloy is 100 g, component B represents 60% of...
s. Consider propane, which has a normal boiling point of -42.0°C and a heat of vaporization...
s. Consider propane, which has a normal boiling point of -42.0°C and a heat of vaporization of 19 kJ/mol. What is the vapor pressure at 25.0°C? 6. Atmospheric pressure on the surface of Mars averages 600 Pa (6 mbar) Use the phase diagram for water below to determine the boiling and melting points for water on the surface of Mars, assuming an atmospheric pressure of 800 Pa. Note that this chart uses a logarithmic scale, so the axes major unit...
6. Use the phase diagram below to answer the following questions. Pressure (Atmosphere) 45° 60° 100°...
6. Use the phase diagram below to answer the following questions. Pressure (Atmosphere) 45° 60° 100° 110° Temperature (°C) a. Which section represents the solid phase? b. What section represents the liquid phase? c. What section represents the gas phase? d. What letter represents the triple point? the definition of a triple point? In your own words, what is e. What is this substance's normal melting point, at 1 atmosphere of pressure? f. What is this substance's normal boiling point,...
A copper-nickel alloy of composition (40% Ni-60% Cu) is slowly heated from a temperature of 1200°C: 1. a) At what temperature does the first liquid phase form? b) What is the composition of this liq...
A copper-nickel alloy of composition (40% Ni-60% Cu) is slowly heated from a temperature of 1200°C: 1. a) At what temperature does the first liquid phase form? b) What is the composition of this liquid phase? c) At what temperature does complete melting of the alloy occur? d) What is the composition of the last solid remaining prior to complete melting? Composition (at% N) 100 0 1600 2800 1500 1453°C Liquid 2600 Soldus line Liquidus line 1300 - 2200 120아ㅡㅡㅡㅡㅡ...
27. ( 5 pts.) A space probe landed on Planet X4 and found that its surface...
27. ( 5 pts.) A space probe landed on Planet X4 and found that its surface temperature was about -345.75°F. State the phase(s) (solid, liquid, vapor) of each of the following substances on that moon's surface, based on their melting point and boiling point. This temperature is: K. Substance Melting Point (K) Boiling Point (K) Phase(s) Nitrogen, N, 63.29 77.35 Oxygen, O2 54.75 90.19
2. A 50 wt% Ni-50 wt% Cu alloy is heated to a temperature within the a...
2. A 50 wt% Ni-50 wt% Cu alloy is heated to a temperature within the a + liquid-phase region. If the composition of the a phase is 58 wt% Ni, determine: a) The temperature of the alloy b) The composition of the liquid phase c) The relative amount of each phase (weight fractions) T(°C) 1600 1500 L (liquid) 1400 1300 iquiduis Na solidus 1200 1100 (FCC solid solution) 1000 L 0 20 40 60 80 100 wt% Ni
Composition (at% Pb) 20 30 40 70 100 1200 a М MeәРЫ +L Temperature (°C) Temperature...
Composition (at% Pb) 20 30 40 70 100 1200 a М MeәРЫ +L Temperature (°C) Temperature (°F) Mg2Pb a + Mg Pb B + Mg, Pb 200 Mg2Pb 40 60 100 (Mg) Composition (wt% Pb) (Pb) (10 minutes) Use the above Magnesium (Mg) - Lead (Pb) phase diagram. A 30%Pb - 70%Mg alloy is slowly cooled from 700°C to 300°C. Answer the following questions and don't forget the units. (A) At what temperature does the first solid phase form? (B)...
A mass M of solid metal at temperature T is put into 3.0kg of water which is initially at 90°C. T...
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A mass M of solid metal at temperature T is put into 3.0kg of water which is initially at 90°C. The metal and water are placed in an insulated container The specific heat for water is 4186K of 60°C. The latent heat associated with the solid-liquid transition of the metal is 7.5 x 10. The specific heat for the metal is 600 in the solid phase and 400% in the liquid phase The metal has a...
Enthalpies of Phase Changes Select the defined quantity (using the drop boxes) which is needed to calculate how much energy is absorbed by the sample during each of the following changes. 75 g of solid iron at its melting point (1535 °C) changes to molten iron at 1535 °C 75 g of molten gold at 1064 °C (its freezing point) changes to solid gold at 1064 °C 775 g of liquid butane (C4H10) at -0.5 °C (its boiling point) changes...
Percent weight of material A 50 75 25 Melting temperature of material A Liquid Liquid and solid Melting temperature of material B Solid 0 25 50 Percent weight of material B 75 100 Consider an alloy of two soluble components A and B shown in the phase diagram. Determine the masses of the alloy that are in liquid and solid phases at a given temperature if the total mass of the alloy is 100 g, component B represents 60% of...
s. Consider propane, which has a normal boiling point of -42.0°C and a heat of vaporization of 19 kJ/mol. What is the vapor pressure at 25.0°C? 6. Atmospheric pressure on the surface of Mars averages 600 Pa (6 mbar) Use the phase diagram for water below to determine the boiling and melting points for water on the surface of Mars, assuming an atmospheric pressure of 800 Pa. Note that this chart uses a logarithmic scale, so the axes major unit...
6. Use the phase diagram below to answer the following questions. Pressure (Atmosphere) 45° 60° 100° 110° Temperature (°C) a. Which section represents the solid phase? b. What section represents the liquid phase? c. What section represents the gas phase? d. What letter represents the triple point? the definition of a triple point? In your own words, what is e. What is this substance's normal melting point, at 1 atmosphere of pressure? f. What is this substance's normal boiling point,...
A copper-nickel alloy of composition (40% Ni-60% Cu) is slowly heated from a temperature of 1200°C: 1. a) At what temperature does the first liquid phase form? b) What is the composition of this liquid phase? c) At what temperature does complete melting of the alloy occur? d) What is the composition of the last solid remaining prior to complete melting? Composition (at% N) 100 0 1600 2800 1500 1453°C Liquid 2600 Soldus line Liquidus line 1300 - 2200 120아ㅡㅡㅡㅡㅡ...
27. ( 5 pts.) A space probe landed on Planet X4 and found that its surface temperature was about -345.75°F. State the phase(s) (solid, liquid, vapor) of each of the following substances on that moon's surface, based on their melting point and boiling point. This temperature is: K. Substance Melting Point (K) Boiling Point (K) Phase(s) Nitrogen, N, 63.29 77.35 Oxygen, O2 54.75 90.19
2. A 50 wt% Ni-50 wt% Cu alloy is heated to a temperature within the a + liquid-phase region. If the composition of the a phase is 58 wt% Ni, determine: a) The temperature of the alloy b) The composition of the liquid phase c) The relative amount of each phase (weight fractions) T(°C) 1600 1500 L (liquid) 1400 1300 iquiduis Na solidus 1200 1100 (FCC solid solution) 1000 L 0 20 40 60 80 100 wt% Ni
Composition (at% Pb) 20 30 40 70 100 1200 a М MeәРЫ +L Temperature (°C) Temperature (°F) Mg2Pb a + Mg Pb B + Mg, Pb 200 Mg2Pb 40 60 100 (Mg) Composition (wt% Pb) (Pb) (10 minutes) Use the above Magnesium (Mg) - Lead (Pb) phase diagram. A 30%Pb - 70%Mg alloy is slowly cooled from 700°C to 300°C. Answer the following questions and don't forget the units. (A) At what temperature does the first solid phase form? (B)...
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A mass M of solid metal at temperature T is put into 3.0kg of water which is initially at 90°C. The metal and water are placed in an insulated container The specific heat for water is 4186K of 60°C. The latent heat associated with the solid-liquid transition of the metal is 7.5 x 10. The specific heat for the metal is 600 in the solid phase and 400% in the liquid phase The metal has a...
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