For both questions assume ethane to be an ideal gas: a) Two moles of ethane within...
For both questions assume ethane to be an ideal gas:
a) Two moles of ethane within a cylinder at 500 °C and 1 atm are compressed in a multi-step process to produce ethane at 400 °C and 1 atm. If 1 kJ of mechanical work is provided during the process, determine the heating or cooling needs.
b) Ethane at 400 °C and 1 atm flows at a rate of 2 mole/s through a continuous process that undergoes an input of 1 kW of mechanical work. Determine the rate of heating or cooling required to have the ethane exit the process at 500 °C and 1 atm.
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For both questions assume ethane to be an ideal gas:
a) Two moles of ethane within...
61N 16. Two moles of an ideal gas are compressed in a cylinder at a constant...
61N 16. Two moles of an ideal gas are compressed in a cylinder at a constant temperature of 65 °C until the original pressure has tripled. (a) Sketch a pV diagram for this process. (b) Calculate the amount of work done.
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...
d. Two moles of an ideal gas are compressed in a cylinder at a constant temperature...
d. Two moles of an ideal gas are compressed in a cylinder at a constant temperature of (75°C) until the original pressure, (2x10$ Pa), is tripled. Given that (R = 8.314 J/mol-K), Find: (1) The amount of work done. () The final volume of the gas.
Thermodynamics 2.56 A gas within a piston-cylinder assembly undergoes a thermo- dynamic cycle consisting of three...
Thermodynamics
2.56 A gas within a piston-cylinder assembly undergoes a thermo- dynamic cycle consisting of three processes: Process 1-2: Constant volume V1 m, pi bar, to p2 3 bar, U2- U400 kJ Process 2-3: Constant pressure expansion to V 2 m3 Process 3-1: Adiabatic compression, with W1120 kJ There are no significant changes in kinetic or potential energy. De- termine the net work for the cycle, in kJ, and the heat transfers for Processes 1-2 and 2-3, in kJ. Is...
Part A:Refer to diagram 2. A flask contains 85.2 moles of a monatomic ideal gas at...
Part A:Refer to diagram 2. A flask contains 85.2 moles of a
monatomic ideal gas at pressure 6.9 atm and volume 13.4 liters
(point A on the graph. Now, the gas undergoes a cycle of three
steps: - First there is an isothermal expansion to pressure 3.65
atm (point B on the graph). - Next, there is an isochoric process
in which the pressure is raised to P1 (point C on the graph). -
Finally, there is an isobaric compression...
Air, modeled as an ideal gas, is compressed at steady state from 1 bar, 300 K,...
Air, modeled as an ideal gas, is compressed at steady state from 1 bar, 300 K, to 5 bar, 500 K, with 190 kW of power input. Heat transfer occurs at a rate of 25.33 kW from the air to cooling water circulating in a water jacket enclosing the compressor. Neglecting kinetic and potential energy effects, determine the mass flow rate of the air, in kg/s.
Two moles of nitrogen gas at 25°C, confined within a cylinder by a piston maintaining a...
Two moles of nitrogen gas at 25°C, confined within a cylinder by a piston maintaining a constant pressure of 1 atm, is heated with 5.30 kJ of energy. Assume all the energy is used to do work of expansion of the gas at 1 atm. What will be the final temperature of the gas? Recall ∆H = ∆E + P∆V and watch your units!
1.5 moles of an ideal gas, for which the molar heat capacity Cv.m = 3/2R, initially...
1.5 moles of an ideal gas, for which the molar heat capacity Cv.m = 3/2R, initially at 25.0°C and 1 atm undergoes a two-stage transformation. Calculate q. w. Au in kJ for the complete process (a+b). a. The gas is expanded isothermally and reversibly until the volume doubles b. Beginning at the end of the first stage, the temperature is raised to 100.0°C at constant volume. 9 -2.57 ki A. W = 2.57 kJ AU = 5.14 k) = +2.57...
1. (3 Points) Air (as an ideal gas) is compressed in an adiabatic compressor from an...
1. (3 Points) Air (as an ideal gas) is compressed in an adiabatic compressor from an initial state of 100 kPa and 300K to a final state of at 200 kPa and 600K. Determine the change in specific entropy of air during this compression process. 2. (3 Points) A heat engine operates between two temperature limits of 1300 K and 400 K. It receives 1.2 MJ of heat while producing 500 kJ of useful work. Determine: a. The exergy of...
d two moles of hydrochlorhermal energy arck on the su ®, 150,0 kJ of thermal serey...
d two moles of hydrochlorhermal energy arck on the su ®, 150,0 kJ of thermal serey are released at 25.00°C and o the surroundings as work is d only P- 7. When one mole of zinc and two moles of hydrochloric acid undergo the read Zn(s) + 2 HCl(aq) → ZnCl, (aq) + He), 150,0 kJ of thermal energy are reicas 1.000 atm. The Ha gas generated does approximately 2 500 KJ of work on the surroundings as expands. Calculate...
61N 16. Two moles of an ideal gas are compressed in a cylinder at a constant temperature of 65 °C until the original pressure has tripled. (a) Sketch a pV diagram for this process. (b) Calculate the amount of work done.
d. Two moles of an ideal gas are compressed in a cylinder at a constant temperature of (75°C) until the original pressure, (2x10$ Pa), is tripled. Given that (R = 8.314 J/mol-K), Find: (1) The amount of work done. () The final volume of the gas.
Thermodynamics
2.56 A gas within a piston-cylinder assembly undergoes a thermo- dynamic cycle consisting of three processes: Process 1-2: Constant volume V1 m, pi bar, to p2 3 bar, U2- U400 kJ Process 2-3: Constant pressure expansion to V 2 m3 Process 3-1: Adiabatic compression, with W1120 kJ There are no significant changes in kinetic or potential energy. De- termine the net work for the cycle, in kJ, and the heat transfers for Processes 1-2 and 2-3, in kJ. Is...
Part A:Refer to diagram 2. A flask contains 85.2 moles of a
monatomic ideal gas at pressure 6.9 atm and volume 13.4 liters
(point A on the graph. Now, the gas undergoes a cycle of three
steps: - First there is an isothermal expansion to pressure 3.65
atm (point B on the graph). - Next, there is an isochoric process
in which the pressure is raised to P1 (point C on the graph). -
Finally, there is an isobaric compression...
1.5 moles of an ideal gas, for which the molar heat capacity Cv.m = 3/2R, initially at 25.0°C and 1 atm undergoes a two-stage transformation. Calculate q. w. Au in kJ for the complete process (a+b). a. The gas is expanded isothermally and reversibly until the volume doubles b. Beginning at the end of the first stage, the temperature is raised to 100.0°C at constant volume. 9 -2.57 ki A. W = 2.57 kJ AU = 5.14 k) = +2.57...
1. (3 Points) Air (as an ideal gas) is compressed in an adiabatic compressor from an initial state of 100 kPa and 300K to a final state of at 200 kPa and 600K. Determine the change in specific entropy of air during this compression process. 2. (3 Points) A heat engine operates between two temperature limits of 1300 K and 400 K. It receives 1.2 MJ of heat while producing 500 kJ of useful work. Determine: a. The exergy of...
d two moles of hydrochlorhermal energy arck on the su ®, 150,0 kJ of thermal serey are released at 25.00°C and o the surroundings as work is d only P- 7. When one mole of zinc and two moles of hydrochloric acid undergo the read Zn(s) + 2 HCl(aq) → ZnCl, (aq) + He), 150,0 kJ of thermal energy are reicas 1.000 atm. The Ha gas generated does approximately 2 500 KJ of work on the surroundings as expands. Calculate...
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