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I. (30 pts.) One mole of an ideal gas with constant heat capacities and ? 5/3...
3. (7pts.) A closed system contains one mole of an ideal gas with constant heat capacities...
3. (7pts.) A closed system contains one mole of an ideal gas with constant heat capacities and 5/3 at Ti 400 K. The gas undergoes a constant-pressure process during which it receives = 62355/ ofheat. Calculate the final temperature of the gas, T2, the work produced, w, and the entropy change, ΔS, for the process.
1. a 10 mol sample of ideal gas whose heat capacities are Cv= 20.8 J/K Mole...
1. a 10 mol sample of ideal gas whose heat capacities are Cv= 20.8 J/K Mole and Cv = 29.1 J/K Mole a. Undergoes a reversible constant volume cooking from 49.3 L, 300 K, and 5.00 atm to 150 K. Calculate q, w, and ΔU. b. the same gas then underwent a reversible constant pressure expansion from 150 K and 2.50 atm to 98.6 L. Calculate q , w, and ΔU. You'll need the ideal gas law to calculate T-final...
A 1.00 mole sample of an ideal monatomic gas, originally at a pressure of 1.00 atm,...
A 1.00 mole sample of an ideal monatomic gas, originally at a pressure of 1.00 atm, undergoes, undergoes a three-step process. (1) It is expanded adiabatically from T1 = 550 K, to T2 = 389 K; (2) it is compressed at constant pressure until the temperature reaches T3; (3) it then returns to its original temperature and pressure by a constant volume process. (a) Plot these processes on a PV diagram. (b) Determine T3. (c) Calculate the change in internal energy, the...
A 1.00 mole sample of an ideal monatomic gas, originally a pressure of 1.00 atm, undergoing...
A 1.00 mole sample of an ideal monatomic gas, originally a pressure of 1.00 atm, undergoing a three-step process: • Expands adiabatically from T1 = 588 K to T2 = 300 K • It is compressed at constant pressure until its temperature reaches T3; • Then it returns to its original pressure and temperature using a constant volume process. Calculate cycle efficiency Select one: (Quickly, please :() Calculate cycle efficiency Select one: to. 30.4% b. None of the above options...
W 2. One mole of an ideal gas initially at 37°C and 2 bar pressure is...
W 2. One mole of an ideal gas initially at 37°C and 2 bar pressure is heated and allowed to expand reversibly at constant pressure until the final temperature is 287°C. For this gas, Cum = 2.5R, constant over the temperature range. a. Derive related thermodynamic equations (q, w, U, and H) for an ideal gas, when the temperature is changed (5 points). b. Calculate w (work done on the ideal gas), 9 (the amount of heat absorbed by the...
Physical Chemistry Calculate the change in entropy when one mole of metallic aluminum is heated at...
Physical Chemistry
Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 °C to a final temperature of 750 °C. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol K1 and 31.75 J mol K, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 °C) is 396.57 J g1. The molar mass of aluminum is...
One mole of an ideal monoatomic gas is initially at 300 K and 5 bar of...
One mole of an ideal monoatomic gas is initially at 300 K and 5 bar of pressure inside a cylinder with a frictionless piston. a) The cylinder is kept in a heat bath and the gas is allowed to expand under 1 bar of external pressure. Calculate the work and heat associated with this process. b) Calculate the change in enthalpy for isothermal expansion at constant pressure. c) Alternatively, the gas is allowed to expand isothermally under near-equilibrium conditions. Calculate...
4 (30 points). A rigid tank that is initially evacuated is connected through a valve toa...
4 (30 points). A rigid tank that is initially evacuated is connected through a valve toa supply line that carries helium at 1 MPa and 300 K. Now the valve is opened, and helium is allowed to flow slowly intothe tank until the pressure reaches IMPa P2). The final temperature and mass of the helium gas in the tank are: T2 300 K and m2 1 kg. Determine the direction (Is heat transferred to or from the tank?) and amount...
9. One mole of an ideal gas, initially at 300 K, is cooled at constant volume...
9. One mole of an ideal gas, initially at 300 K, is cooled at constant volume so that the final pressure is one-fourth the initial pressure. Then the Ras expands at constant pressure until reaches the initial temperature. Determine the work done on the gas.
6. (25 points) One mole of a monatomic ideal gas, initially at pressure P1 = 105...
6. (25 points) One mole of a monatomic ideal gas, initially at pressure P1 = 105 Pa and temperature T1 = 273 K undergoes an isovolumetric process in which its pressure falls to half its initial value. a) What is the work done by the gas? What is the final temperature? b) The gas then expands isobarically (constant pressure) to twice its initial volume. What is the work done by the gas? What is the final temperature? c) Draw a...
3. (7pts.) A closed system contains one mole of an ideal gas with constant heat capacities and 5/3 at Ti 400 K. The gas undergoes a constant-pressure process during which it receives = 62355/ ofheat. Calculate the final temperature of the gas, T2, the work produced, w, and the entropy change, ΔS, for the process.
W 2. One mole of an ideal gas initially at 37°C and 2 bar pressure is heated and allowed to expand reversibly at constant pressure until the final temperature is 287°C. For this gas, Cum = 2.5R, constant over the temperature range. a. Derive related thermodynamic equations (q, w, U, and H) for an ideal gas, when the temperature is changed (5 points). b. Calculate w (work done on the ideal gas), 9 (the amount of heat absorbed by the...
Physical Chemistry
Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 °C to a final temperature of 750 °C. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol K1 and 31.75 J mol K, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 °C) is 396.57 J g1. The molar mass of aluminum is...
4 (30 points). A rigid tank that is initially evacuated is connected through a valve toa supply line that carries helium at 1 MPa and 300 K. Now the valve is opened, and helium is allowed to flow slowly intothe tank until the pressure reaches IMPa P2). The final temperature and mass of the helium gas in the tank are: T2 300 K and m2 1 kg. Determine the direction (Is heat transferred to or from the tank?) and amount...
9. One mole of an ideal gas, initially at 300 K, is cooled at constant volume so that the final pressure is one-fourth the initial pressure. Then the Ras expands at constant pressure until reaches the initial temperature. Determine the work done on the gas.
6. (25 points) One mole of a monatomic ideal gas, initially at pressure P1 = 105 Pa and temperature T1 = 273 K undergoes an isovolumetric process in which its pressure falls to half its initial value. a) What is the work done by the gas? What is the final temperature? b) The gas then expands isobarically (constant pressure) to twice its initial volume. What is the work done by the gas? What is the final temperature? c) Draw a...
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