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A cylinder contains 10L of an ideal...
A cylinder contains 10L of an ideal gas at 310K and 140kPa. The temperature is dropped...
A cylinder contains 10L of an ideal gas at 310K and 140kPa. The temperature is dropped to 294K. In order to maintain the same volume (V;=V_), how much is the final pressure (P;)? [7 Marks] Pressure (Pf) kPa
6. A cylinder contains 10 kg of air (ideal gas) and 200 kPa, is maintained at...
6. A cylinder contains 10 kg of air (ideal gas) and 200 kPa, is maintained at 27 C, and its pressure doubles, the cylinder rises 0.035, determine: initial volume of the tank, final volume, the diameter of the cylinder and the work done by gas.
Constant amount of ideal gas is kept inside a cylinder by a piston. Then the gas...
Constant amount of ideal gas is kept inside a cylinder by a piston. Then the gas expands isobarically. Compare the initial (i) and the final (f) physical quantities of the gas to each other. equal to less than greater than The volume Vf is ... Vi. equal to less than greater than The temperature Tf is ... Ti. equal to less than greater than The entropy Sf is ... Si. equal to less than greater than The internal energy Uf is ... Ui. equal...
Constant amount of ideal gas is kept inside a cylinder by a piston. The piston is...
Constant amount of ideal gas is kept inside a cylinder by a piston. The piston is locked in to position, it is not allowed to move. The gas is then heated up. Compare the initial (i) and the final (f) physical quantities of the gas to each other. equal to less than greater than The entropy Sf is ... Si. equal to less than greater than The temperature Tf is ... Ti. equal to less than greater than The volume Vf is ......
Constant amount of ideal gas is kept inside a cylinder by a piston. Then the gas...
Constant amount of ideal gas is kept inside a cylinder by a
piston. Then the gas expands adiabatically.
Compare the initial (i) and the final (f) physical quantities of
the gas to each other.
equal to less than greater than The volume Vf
is ... Vi.
equal to less than greater than The entropy
Sf is ... Si.
equal to less than greater than The internal energy
Uf is ... Ui.
equal to less than greater than The pressure
pf is ... pi.
equal...
An insulated piston-cylinder device contains 0.1m3 of air (ideal gas) at 400 kPa and 25℃. A...
An insulated piston-cylinder device contains 0.1m3 of air (ideal gas) at 400 kPa and 25℃. A paddle wheel within the cylinder is rotated until 15 kJ of work is done on the air while the pressure is held constant. Assuming the kinetic and potential energies are negligible and the gas constant and specific heat of air are ? = 0.287 kJ kg∙K and ?? = 1.005 kJ kg∙K . Tasks: ( a ) Determine the mass of air inside the...
This question is about work and pressure A frictionless piston cylinder contains a gas at a...
This question is about work and pressure A frictionless piston cylinder contains a gas at a pressure of 200 kPa. The cross-sectional area of the piston is 0.04 m². Heat transfers to the gas, and as a result, the piston and load are raised through a distance (*) of 0.4 m. Assume the atmospheric air pressure to be 100 kPa. (Hint: this process is isobaric) 0 Is this an open system or a closed system and why? [2 marks] (I)...
Question 3 A rigid tank, of 0.5 m volume, contains an ideal-gas mixture at 300 K....
Question 3 A rigid tank, of 0.5 m volume, contains an ideal-gas mixture at 300 K. The mixture is made up of 2.4 kg of gas A and 1.4 kg of gas B, the molecular weights of which are MA = 32.0 kg/kmole and M 28.0 kg/kmole, respectively. i. Determine the mass fraction of A and B. (3 marks] ii. Determine the mole fraction of A and B. [5 marks] iii. Determine the molecular weight of the mixture. [2 marks]...
A gas cylinder containing carbon dioxide, CO2, 85% by volume, and nitrogen, N2, 15% by volume...
A gas cylinder containing carbon dioxide, CO2, 85% by volume, and nitrogen, N2, 15% by volume has a volume of 2.2 m and is kept at a temperature of 20°C. You may assume the gas mixture is ideal. 0 Calculate the pressure in kPa in the cylinder when it contains 50 kg of gas. [2 marks] After a certain amount of gas has been used, the pressure decreases by 150 kPa. Calculate the mass of gas used. [2 marks] (b)...
1. Question 4-7 from Thermodynamics ed. 7: A piston- cylinder device initially contains 0.07 m' of...
1. Question 4-7 from Thermodynamics ed. 7: A piston- cylinder device initially contains 0.07 m' of nitrogen gas at 130 kPa and 180 C. The nitrogen is now expanded to a pressure of 80 kPa polytropically with a polytropic exponent whose value is equal to the specific heat ratio (called isentropic expansion). Determine the final temperature and the boundary work done during this process.
A cylinder contains 10L of an ideal gas at 310K and 140kPa. The temperature is dropped to 294K. In order to maintain the same volume (V;=V_), how much is the final pressure (P;)? [7 Marks] Pressure (Pf) kPa
6. A cylinder contains 10 kg of air (ideal gas) and 200 kPa, is maintained at 27 C, and its pressure doubles, the cylinder rises 0.035, determine: initial volume of the tank, final volume, the diameter of the cylinder and the work done by gas.
Constant amount of ideal gas is kept inside a cylinder by a
piston. Then the gas expands adiabatically.
Compare the initial (i) and the final (f) physical quantities of
the gas to each other.
equal to less than greater than The volume Vf
is ... Vi.
equal to less than greater than The entropy
Sf is ... Si.
equal to less than greater than The internal energy
Uf is ... Ui.
equal to less than greater than The pressure
pf is ... pi.
equal...
This question is about work and pressure A frictionless piston cylinder contains a gas at a pressure of 200 kPa. The cross-sectional area of the piston is 0.04 m². Heat transfers to the gas, and as a result, the piston and load are raised through a distance (*) of 0.4 m. Assume the atmospheric air pressure to be 100 kPa. (Hint: this process is isobaric) 0 Is this an open system or a closed system and why? [2 marks] (I)...
Question 3 A rigid tank, of 0.5 m volume, contains an ideal-gas mixture at 300 K. The mixture is made up of 2.4 kg of gas A and 1.4 kg of gas B, the molecular weights of which are MA = 32.0 kg/kmole and M 28.0 kg/kmole, respectively. i. Determine the mass fraction of A and B. (3 marks] ii. Determine the mole fraction of A and B. [5 marks] iii. Determine the molecular weight of the mixture. [2 marks]...
A gas cylinder containing carbon dioxide, CO2, 85% by volume, and nitrogen, N2, 15% by volume has a volume of 2.2 m and is kept at a temperature of 20°C. You may assume the gas mixture is ideal. 0 Calculate the pressure in kPa in the cylinder when it contains 50 kg of gas. [2 marks] After a certain amount of gas has been used, the pressure decreases by 150 kPa. Calculate the mass of gas used. [2 marks] (b)...
1. Question 4-7 from Thermodynamics ed. 7: A piston- cylinder device initially contains 0.07 m' of nitrogen gas at 130 kPa and 180 C. The nitrogen is now expanded to a pressure of 80 kPa polytropically with a polytropic exponent whose value is equal to the specific heat ratio (called isentropic expansion). Determine the final temperature and the boundary work done during this process.
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