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Example: Determine the heat transfer and its direction for a system in which a perfect gas...
A quantity of a certain perfect gas is compressed from an initial state of 0.085 m3,...
A quantity of a certain perfect gas is compressed from an initial state of 0.085 m3, 1 bar to a final state of 0.034 m3, 3.9 bar. The specific heat at constant volume is 0.724 kJ/kg×K, and the specific heat at constant pressure is 1.020 kJ/kg×K. The observed temperature rise is 146K. Calculate the specific gas constant, R, the mass of gas present, and the internal energy of the gas.
A gas in a cylinder piston system occupies V, - 15 mºat P. = 220 kPa...
A gas in a cylinder piston system occupies V, - 15 mºat P. = 220 kPa and T, -20°C. Then, the gas undergoes a polytropic compression process until its temperature becomes T, 300'C. The entropy change of the gas during this process is AS - -1.7626 kJ/K, (AS-S.-5.). By assuming ideal gas (R = 0.3 kJ/kg.K. cp = 0.8 kJ/kg.K. cv = 0.5 kJ/kg.K), determine: 3pt) the mass of the gas, m (kg) = (9pt) the work transfer, W (kl)...
Required information An ideal Otto cycle has a compression ratio of 8. At the beginning of...
Required information An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27 and 720 kJ/kg of heat is transferred to air during the constant volume heat addition process. Take into account the variation of specific heats with temperature. The gas constant of air is R=0.287 kJ/kg.K. Determine the network output (You must provide an answer before moving on to the next part.) The net work output...
اولی ما نك رعو Asst. Lec. Murtadha S. Mohammed Thermodynamics/18, years Example: ا اے One kg...
اولی ما نك رعو Asst. Lec. Murtadha S. Mohammed Thermodynamics/18, years Example: ا اے One kg of a perfect gas is compressed from 1.1 bar, 27C° according to law PV 1.3 = C until the pressure is 6.6 bar find the heat flow to or from the system when the gas was than M=30kg/k mol,Cp = 1.75 kJ / kg. K, C =1.472 kJ/kg.K. هے :Solution Cp 1.75 1.188 + n The اولی ما نك WA رمو Asst. Lec. Murtadha...
1. (10 pts) A 10 m® rigid storage tank contains oxygen gas (R = 0.2598 kJ/kg.K,...
1. (10 pts) A 10 m® rigid storage tank contains oxygen gas (R = 0.2598 kJ/kg.K, Cp = 0.918 kJ/kg.K, cv = 0.658 kJ/kg.K). The tank is initially 200 kPa and 600° It is cooled to 25°C in 35 minutes. Determine: 1. (3 pts) The mass of oxygen in the tank, in kg. 2. (3 pts) The final pressure in the tank, in kPa. 3. (4 pts) The rate of heat transfer from the oxygen, in kW.
4. A mass of 5 kg undergoes a process during which there is heat transfer from...
4. A mass of 5 kg undergoes a process during which there is heat transfer from the mass at a rate of 6 kJ per kg, an elevation decrease of 34 m, and an increase in velocity from 13 m/s to 34 m/s. The specific internal energy decreases by 6 kJ/kg and the acceleration of gravity is constant at 9.7 m/s2. Determine the work for the process, in kJ. 5. A gas is compressed in a piston–cylinder assembly from p1...
4. A gas 0.1 m3 to five times the original volume. Determine the heat transfer in...
4. A gas 0.1 m3 to five times the original volume. Determine the heat transfer in kJ. Use the PG model Hide Details ke 1 4, ? 1 kwkg K, R . 0.287 kJ kg K expands in a piston-cylinder device during a constant-pressn heating for an initial dion of 1000 kpa 300K nter answer as a decimal number (3.14, 5.0,-2.78,5, for example) Submit
A mixture of ideal gases has a specific heat ratio of k= 1.35 and an apparent...
A mixture of ideal gases has a specific heat ratio of k= 1.35 and an apparent molecular weight of M= 26 kg/kmol. Determine the work. in kJ/kg, required to compress this mixture isentropically in a closed system from 100 kPa and 35 C to 700 kPa. The universal gas constant is Ru 8.314 kJ/kmol-K Gas mixture k-1.35 100 kPa, 35°C The work required to compress this mixture is kJ/kg.
any help thank you Chapter 12 Ideal Gas Mixtures and Psychrometric Applications Converting Between Mass Fraction...
any help thank you
Chapter 12 Ideal Gas Mixtures and Psychrometric Applications Converting Between Mass Fraction and Mole Fraction Mass Fraction Mole Fraction m/M y, M M mf M cy, MM m/M Example 1: Determine the mf CO2 0.04 MW mix mixture molecular weight mf_N2 0.7 m mix (kg) (kg/kmol), specific volume mf_02 0.2 0.06 (m®/kg), and mole fraction for mf_H20 T(C) 40 a gas mixture given the mass P (bar) 1 fraction, temperature, pressure and volume. V(m3) Example 2:...
Check my work 6 10 A piston-cylinder device contains 0.63 kg of nitrogen gas at 140...
Check my work 6 10 A piston-cylinder device contains 0.63 kg of nitrogen gas at 140 kPa and 37°C. The gas is now compressed slowly in a polytropic process during which PV1.3 = constant. The process ends when the volume is reduced by one-half. Determine the entropy change of nitrogen during this process. The gas constant of nitrogen is R = 0.2968 kJ/kg.K. The constant volume specific heat of nitrogen at room temperature is cy" 0.743 kJ/kg.K. (Round the final...
A gas in a cylinder piston system occupies V, - 15 mºat P. = 220 kPa and T, -20°C. Then, the gas undergoes a polytropic compression process until its temperature becomes T, 300'C. The entropy change of the gas during this process is AS - -1.7626 kJ/K, (AS-S.-5.). By assuming ideal gas (R = 0.3 kJ/kg.K. cp = 0.8 kJ/kg.K. cv = 0.5 kJ/kg.K), determine: 3pt) the mass of the gas, m (kg) = (9pt) the work transfer, W (kl)...
Required information An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27 and 720 kJ/kg of heat is transferred to air during the constant volume heat addition process. Take into account the variation of specific heats with temperature. The gas constant of air is R=0.287 kJ/kg.K. Determine the network output (You must provide an answer before moving on to the next part.) The net work output...
اولی ما نك رعو Asst. Lec. Murtadha S. Mohammed Thermodynamics/18, years Example: ا اے One kg of a perfect gas is compressed from 1.1 bar, 27C° according to law PV 1.3 = C until the pressure is 6.6 bar find the heat flow to or from the system when the gas was than M=30kg/k mol,Cp = 1.75 kJ / kg. K, C =1.472 kJ/kg.K. هے :Solution Cp 1.75 1.188 + n The اولی ما نك WA رمو Asst. Lec. Murtadha...
1. (10 pts) A 10 m® rigid storage tank contains oxygen gas (R = 0.2598 kJ/kg.K, Cp = 0.918 kJ/kg.K, cv = 0.658 kJ/kg.K). The tank is initially 200 kPa and 600° It is cooled to 25°C in 35 minutes. Determine: 1. (3 pts) The mass of oxygen in the tank, in kg. 2. (3 pts) The final pressure in the tank, in kPa. 3. (4 pts) The rate of heat transfer from the oxygen, in kW.
4. A gas 0.1 m3 to five times the original volume. Determine the heat transfer in kJ. Use the PG model Hide Details ke 1 4, ? 1 kwkg K, R . 0.287 kJ kg K expands in a piston-cylinder device during a constant-pressn heating for an initial dion of 1000 kpa 300K nter answer as a decimal number (3.14, 5.0,-2.78,5, for example) Submit
A mixture of ideal gases has a specific heat ratio of k= 1.35 and an apparent molecular weight of M= 26 kg/kmol. Determine the work. in kJ/kg, required to compress this mixture isentropically in a closed system from 100 kPa and 35 C to 700 kPa. The universal gas constant is Ru 8.314 kJ/kmol-K Gas mixture k-1.35 100 kPa, 35°C The work required to compress this mixture is kJ/kg.
any help thank you
Chapter 12 Ideal Gas Mixtures and Psychrometric Applications Converting Between Mass Fraction and Mole Fraction Mass Fraction Mole Fraction m/M y, M M mf M cy, MM m/M Example 1: Determine the mf CO2 0.04 MW mix mixture molecular weight mf_N2 0.7 m mix (kg) (kg/kmol), specific volume mf_02 0.2 0.06 (m®/kg), and mole fraction for mf_H20 T(C) 40 a gas mixture given the mass P (bar) 1 fraction, temperature, pressure and volume. V(m3) Example 2:...
Check my work 6 10 A piston-cylinder device contains 0.63 kg of nitrogen gas at 140 kPa and 37°C. The gas is now compressed slowly in a polytropic process during which PV1.3 = constant. The process ends when the volume is reduced by one-half. Determine the entropy change of nitrogen during this process. The gas constant of nitrogen is R = 0.2968 kJ/kg.K. The constant volume specific heat of nitrogen at room temperature is cy" 0.743 kJ/kg.K. (Round the final...
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