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(2 marks) The densities of white and red phosphorus are 1.823 and 2.340 g cm3 respectively....
Physical Chemistry: The densities of white and red phosphorus are 1.823 and 2.340 g cm-3, respectively....
Physical Chemistry: The densities of white and red phosphorus are 1.823 and 2.340 g cm-3, respectively. Calculate the change in molar volume for the transformation of white into red phosphorus.
2. The density of iron at 910 °C is 7.571 g/cm3 for the a-form and 7.633...
2. The density of iron at 910 °C is 7.571 g/cm3 for the a-form and 7.633 g/cm3 for the y-form. The heat absorbed in the α-γ transition is 912 J/mole. (Note that I cm2 atm. = 0.1013 J.) Disregarding the dependency of change in volume with pressure, what is the change in molar volume of iron (in cm/mole)? Calculate the equilibrium temperature for this transformation at a pressure of 1000 atm a. b.
The partial molar volumes of water and ethanol in a solution with xH2O = 0.45 at...
The partial molar volumes of water and ethanol in a solution with xH2O = 0.45 at 25 ∘C are 17.0 and 57.5 cm3 mol−1, respectively. Calculate the volume change upon mixing sufficient ethanol with 6.18 mol of water to give this concentration. The densities of water and ethanol are 0.997 and 0.7893 g cm−3, respectively, at this temperature.
An ethanol-water solution is 40.00% ethanol by mass and has a density of 0.9450 (g/cm3) at 25.00°C. The density of pure...
An ethanol-water solution is 40.00% ethanol by mass and has a density of 0.9450 (g/cm3) at 25.00°C. The density of pure ethanol is 0.7850 (g/cm3) and the density of pure water is 0.9970(g/cm3) at this temperature. At these conditions, the partial molar volume of ethanol is 55.00 (cm3/mol) and the partial molar volume of water is 17.5 (cm3/mol). a. Calculate the total volume of a 1000.0 g solution assuming both ideal and non-ideal conditions. b. What does the difference between...
Calculate G, A, and Suniv for each of the following processes and state any approximation made: ...
Calculate G, A,
and Suniv
for each of the following processes and state any approximation
made:
a) reversible melting of 36.0 g of ice at 0oC and 1
atm
b) reversible vaporization of 39 g of C6H6 at
its normal boiling point of 80.1oC and 1 atm
c) adiabatic expansion of 0.100 mol of a perfect gas into vacuum
with initial temperature of 300 K, initial volume of 2.00 L, and
final volume of 6.00 L
Densities of liquid and...
9) An ethanol-water solution is 40.00% ethanol by mass and has a density of 0.9450 (g/cm3) at 25.00°C. The density...
9) An ethanol-water solution is 40.00% ethanol by mass and has a density of 0.9450 (g/cm3) at 25.00°C. The density of pure ethanol is 0.7850 (g/cms) and the density of pure water is 0.9970(g/cms) at this temperature. At these conditions, the partial molar volume of ethanol is 55.00 (cm3/mol) and the partial molar volume of water is 17.5 (cmmol). a. Calculate the total volume of a 1000.0 g solution assuming both ideal and non-ideal conditions. b. What does the difference...
A certain bivalent metal has a density of 7.239 g/cm3 and a molar mass of 105...
A certain bivalent metal has a density of 7.239 g/cm3 and a molar mass of 105 g/mol. Calculate (a) the number density of conduction electrons, (b) the Fermi energy, (c) the Fermi speed, and (d) the de Broglie wavelength corresponding to this electron speed.
S-1. Calculate the concentrations in (i) mol/L, (ii) in molecules/cm3, and (iii) g/m3, for the gases...
S-1. Calculate the concentrations in (i) mol/L, (ii) in molecules/cm3, and (iii) g/m3, for the gases below. The total pressure of 1.00 atm. a) Oxygen (O2) in the atmosphere at 10.0°C. Its mixing ratio is 0.21. b) Carbon monoxide (CO) in a wood-burning stove at 75°C. Its volume percent in the exhaust gas is 1.5%.
Question 2 (30 marks) (a) A fluid flowing into a nozzle with specific enthalpy of 2980...
Question 2 (30 marks) (a) A fluid flowing into a nozzle with specific enthalpy of 2980 kJ/kg and the velocity is 80 m/s. At the exit of the nozzle, the specific enthalpy of the fluid drops to 2670 kJ/kg. The nozzle orientation is horizontal and the heat loss is negligible. Given that the nozzle inlet area is 0.25 m2 and the specific volume of the fluid is 0.2 m2/kg, calculate the velocity of the fluid at exit, the mass flow...
I need the answers for this questions with explanation and please show the process of the...
I need the answers for this questions with explanation
and please show the process of the calculation.
1. Because density is a physical property of matter? 2. Is density an extensive or intensive property? 3. Which has less density, liquid water or ice?. Why? 4. Calculate the density of a metal object with a volume of 20.2 cm3 and a mass of 159 g. Say the type of material of the object if in a table we find the following...
2. The density of iron at 910 °C is 7.571 g/cm3 for the a-form and 7.633 g/cm3 for the y-form. The heat absorbed in the α-γ transition is 912 J/mole. (Note that I cm2 atm. = 0.1013 J.) Disregarding the dependency of change in volume with pressure, what is the change in molar volume of iron (in cm/mole)? Calculate the equilibrium temperature for this transformation at a pressure of 1000 atm a. b.
Calculate G, A,
and Suniv
for each of the following processes and state any approximation
made:
a) reversible melting of 36.0 g of ice at 0oC and 1
atm
b) reversible vaporization of 39 g of C6H6 at
its normal boiling point of 80.1oC and 1 atm
c) adiabatic expansion of 0.100 mol of a perfect gas into vacuum
with initial temperature of 300 K, initial volume of 2.00 L, and
final volume of 6.00 L
Densities of liquid and...
9) An ethanol-water solution is 40.00% ethanol by mass and has a density of 0.9450 (g/cm3) at 25.00°C. The density of pure ethanol is 0.7850 (g/cms) and the density of pure water is 0.9970(g/cms) at this temperature. At these conditions, the partial molar volume of ethanol is 55.00 (cm3/mol) and the partial molar volume of water is 17.5 (cmmol). a. Calculate the total volume of a 1000.0 g solution assuming both ideal and non-ideal conditions. b. What does the difference...
Question 2 (30 marks) (a) A fluid flowing into a nozzle with specific enthalpy of 2980 kJ/kg and the velocity is 80 m/s. At the exit of the nozzle, the specific enthalpy of the fluid drops to 2670 kJ/kg. The nozzle orientation is horizontal and the heat loss is negligible. Given that the nozzle inlet area is 0.25 m2 and the specific volume of the fluid is 0.2 m2/kg, calculate the velocity of the fluid at exit, the mass flow...
I need the answers for this questions with explanation
and please show the process of the calculation.
1. Because density is a physical property of matter? 2. Is density an extensive or intensive property? 3. Which has less density, liquid water or ice?. Why? 4. Calculate the density of a metal object with a volume of 20.2 cm3 and a mass of 159 g. Say the type of material of the object if in a table we find the following...
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