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f) Why is diamond so hard? g) Why is graphite used as a lubricant? h) Why...
just #6 Thermochemistry, Part I, Calorimetry, Homework 7 Specific Heat Values: cal; Diamond(0.124), graphite(0.170), ice(0.50), steam(0.48),...
just #6
Thermochemistry, Part I, Calorimetry, Homework 7 Specific Heat Values: cal; Diamond(0.124), graphite(0.170), ice(0.50), steam(0.48), Al(0.215), Fe(0.108); S(0.176); liquidCCIF(0.208), gasCCI;F(0.142), liquidCF4(0.294), gasCF4(0.169), Heat of Fusion values: cal; water(80.0), Al(94.4), Heat of Vaporization values: Car; water(540.0), CC13F(43.10), CF4(32.49), Al(1992) 1. Draw the heating-cooling curve for phenol which has a melting point of 43 ºC and a boiling point of 182°C. 2. Draw the heating-cooling curve for Aluminum which has a melting point of 660 °C and a boiling point of...
just 63 61. what is the H in kilokulesiMof so g water at 253 K becoming...
just 63
61. what is the H in kilokulesiMof so g water at 253 K becoming this matter at 253°C according to the specific heats above? Table l: Bond energies of relevant bonds 62. Which of the steps involved in the process of Question 61 above involves the largest A qsystem? Bond H-H Energy to break in kJ/mol) 432 a) ice warming b) ice melting c) water warming d) water becoming steam e) steam being warmed N-H C-H 391 413...
Calculate q, w, and Delta U for 10.0 g of ice melting at 0.0 ºC and...
Calculate q, w, and Delta U for 10.0 g of ice melting at 0.0 ºC and at a constant pressure of 1.000 atm. Use the data reported below, but note that other necessary information to solve the problem is not provided and that you are expected to look it up. Density of Ice = 0.917 g/mL Specific heat of fusion = 79.7 cal/g Specific heat of vaporization = 539.6 cal/g NOTE: I believe that one of the equations that is...
*Explanations should be brief. Draw a box around each final answer, if applicable.* 1. Consider intermolecular...
*Explanations should be brief. Draw a box around each final answer, if applicable.* 1. Consider intermolecular forces and kinetic energies with respect to a solid and a liquid. Explain why molecules in a liquid are free to move past each other, while molecules in a solid are held in fixed positions. 2. Use your knowledge of intermolecular forces to provide an explanation for why the boiling point of 2-hexanol is higher than the boiling point of 2,3-dimethyl-2-butanol. Be sure to...
Sulfur exhibits two solid phases, rhombie and monoclinic. Use the Phase Diagram er the following question....
Sulfur exhibits two solid phases, rhombie and monoclinic. Use the Phase Diagram er the following question. (The phase diagram is not to scale.) 151C. 1420 m Monline 95 1910 lam I am Rhobic 115.15C 95C 51 x 10am How many triple points are in the phase diagram? b. What phases are in equilibrium at the triple point at 9531°C? (Select all that apply.) rhombic liquid monoclinic c. What phases are in equilibrium at the triple point at 115.18°C? Show in...
1. Some solids can be converted directly to the vapor phase by heating. The process is...
1. Some solids can be converted directly to the vapor phase by heating. The process is called: a) Fusion b) sublimation c) vaporization d) condensation e) distillation 2. Which one of the following substances is INCORRECTLY matched with the kind of solid it forms? Substance Kind of Solid a) Sulfur dioxide molecular b) Graphite covalent c) Calcium bromide ionic d) Lithium ionic e) Methane molecular 3. Arrange the following in order of increasing melting points: KCl, He, H2O, HF. a)...
lodine trichloride, ICl3 is made by reacting iodine with chlorine.
lodine trichloride, ICl3 is made by reacting iodine with chlorine.I₂(s)+Cl₂(g) → 2 IC l(s) ; Δ H°=+14 kJ mol-1ICl(s)+C₂(g) → ICl₃(s): Δ H°=-88 kJ mol-1By using the data above, what is the enthalpy change of the formation for solid iodine trichloride?A -60 kJ mol-1B -74 kJ mol-1C -81 kJ mol-1D -162 kJ mol-18 In the extraction of aluminium by electrolysis, why is it necessary to dissolve aluminium oxide in molten cryolite?A to reduce the very high melting point of the...
Please answer parts E-H and show work/solution ANSWER E-H E F G H ANSWER PARTS E, F, G, AND H.......
Please answer parts E-H and show
work/solution
ANSWER E-H
E F G H
ANSWER PARTS E, F, G, AND H........
8. We have two "named" equations which allow us to quantify the pressure- temperature relationship of a two-phase equilibrium, the Clausius equation, A, and the Clausius-Clapeyron equation, B din P ΔΗ dP AS A: dT RT2 The Clausius equation is an exact result for a one-component system, derived with no approximations, while the Clausius-Clapeyron equation has some constraints. We will...
please do questions g and h... ONLY G AND H The three spin operators for an...
please do questions g and h... ONLY G AND H
The three spin operators for an electron (which is a spin-1/2 particle) are $. - 1 (1 :). $=(: ;), $- (-). Suppose the electron is pinned in space but is subject to a magnetic field B = (0,0,B), so that its Hamiltonian H = -1B-S = - BS. Suppose an initial state of the electron is prepared so that (0)) = (?) a. Show that (0)) is a unit...
19. Calculate the rate of flow of O, (g) through the walls of a porous tube if H, (g) flows at the rate of 3.95 x 10...
19. Calculate the rate of flow of O, (g) through the walls of a porous tube if H, (g) flows at the rate of 3.95 x 10 mL/sec under identical conditions. 20. Acetylene gas reacts with oxygen gas as follows: 2 C,H, (B)+5 0, (8) 4 CO, (B) +2 H,0 (g) What quantity of CO, (g) is formed when 6.0 L of acetylene gas is completely combusted? 21. How many liters of O,(g) at STP are evolved when 3.25 g...
just #6
Thermochemistry, Part I, Calorimetry, Homework 7 Specific Heat Values: cal; Diamond(0.124), graphite(0.170), ice(0.50), steam(0.48), Al(0.215), Fe(0.108); S(0.176); liquidCCIF(0.208), gasCCI;F(0.142), liquidCF4(0.294), gasCF4(0.169), Heat of Fusion values: cal; water(80.0), Al(94.4), Heat of Vaporization values: Car; water(540.0), CC13F(43.10), CF4(32.49), Al(1992) 1. Draw the heating-cooling curve for phenol which has a melting point of 43 ºC and a boiling point of 182°C. 2. Draw the heating-cooling curve for Aluminum which has a melting point of 660 °C and a boiling point of...
just 63
61. what is the H in kilokulesiMof so g water at 253 K becoming this matter at 253°C according to the specific heats above? Table l: Bond energies of relevant bonds 62. Which of the steps involved in the process of Question 61 above involves the largest A qsystem? Bond H-H Energy to break in kJ/mol) 432 a) ice warming b) ice melting c) water warming d) water becoming steam e) steam being warmed N-H C-H 391 413...
*Explanations should be brief. Draw a box around each final answer, if applicable.* 1. Consider intermolecular forces and kinetic energies with respect to a solid and a liquid. Explain why molecules in a liquid are free to move past each other, while molecules in a solid are held in fixed positions. 2. Use your knowledge of intermolecular forces to provide an explanation for why the boiling point of 2-hexanol is higher than the boiling point of 2,3-dimethyl-2-butanol. Be sure to...
Sulfur exhibits two solid phases, rhombie and monoclinic. Use the Phase Diagram er the following question. (The phase diagram is not to scale.) 151C. 1420 m Monline 95 1910 lam I am Rhobic 115.15C 95C 51 x 10am How many triple points are in the phase diagram? b. What phases are in equilibrium at the triple point at 9531°C? (Select all that apply.) rhombic liquid monoclinic c. What phases are in equilibrium at the triple point at 115.18°C? Show in...
1. Some solids can be converted directly to the vapor phase by heating. The process is called: a) Fusion b) sublimation c) vaporization d) condensation e) distillation 2. Which one of the following substances is INCORRECTLY matched with the kind of solid it forms? Substance Kind of Solid a) Sulfur dioxide molecular b) Graphite covalent c) Calcium bromide ionic d) Lithium ionic e) Methane molecular 3. Arrange the following in order of increasing melting points: KCl, He, H2O, HF. a)...
Please answer parts E-H and show
work/solution
ANSWER E-H
E F G H
ANSWER PARTS E, F, G, AND H........
8. We have two "named" equations which allow us to quantify the pressure- temperature relationship of a two-phase equilibrium, the Clausius equation, A, and the Clausius-Clapeyron equation, B din P ΔΗ dP AS A: dT RT2 The Clausius equation is an exact result for a one-component system, derived with no approximations, while the Clausius-Clapeyron equation has some constraints. We will...
please do questions g and h... ONLY G AND H
The three spin operators for an electron (which is a spin-1/2 particle) are $. - 1 (1 :). $=(: ;), $- (-). Suppose the electron is pinned in space but is subject to a magnetic field B = (0,0,B), so that its Hamiltonian H = -1B-S = - BS. Suppose an initial state of the electron is prepared so that (0)) = (?) a. Show that (0)) is a unit...
19. Calculate the rate of flow of O, (g) through the walls of a porous tube if H, (g) flows at the rate of 3.95 x 10 mL/sec under identical conditions. 20. Acetylene gas reacts with oxygen gas as follows: 2 C,H, (B)+5 0, (8) 4 CO, (B) +2 H,0 (g) What quantity of CO, (g) is formed when 6.0 L of acetylene gas is completely combusted? 21. How many liters of O,(g) at STP are evolved when 3.25 g...
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