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Question 9 5 pts An ideal gas initially at 1 bar, 300 K undergoes a polytropic...
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...
Two moles of an ideal monoatomic gas is initially at 300 K and 1 bar of...
Two moles of an ideal monoatomic gas is initially at 300 K and 1 bar of pressure inside a cylinder with a frictionless piston. a) Calculatethekineticenergyforthissystemat300K. b) Calculate the heat capacity at constant volume. c) How much heat is required to increase the temperature by 10°C. d) What is the final pressure after heating, if there is no change in volume.
WORK-OUT PROBLEM #2: An ideal gas with Cym=1.5R, initially at Ti=300 K, P:= 1.10 bar, V1-10...
WORK-OUT PROBLEM #2: An ideal gas with Cym=1.5R, initially at Ti=300 K, P:= 1.10 bar, V1-10 L is heated isochorically until P2=9.80 bar. It then undergoes gradual adiabatical expansion until Ps=P. Finally, it is resorted back to its original state by extraction of heat at constant pressure a) Depict process in a P-V diagram and shade the total work b) Calculate work for each step (W1, W2 and w3). c) What is the value for q, AU and AH for...
Considering that 0.1 kg of gas contained within a piston-cylinder assembly undergoes a polytropic expansion process...
Considering that 0.1 kg of gas contained within a piston-cylinder assembly undergoes a polytropic expansion process with polytropic exponent n=2. The initial state has specific internal energy 10 J/kg, pressure 100 Pa, specific volume 2 m3/kg, and the final state has specific internal energy 5 J/kg and pressure 50 Pa. 1. Sketch the process on a P − V diagram 2. Determine the total heat transfer into or out of the gas during the process.
I. (30 pts.) One mole of an ideal gas with constant heat capacities and ? 5/3...
I. (30 pts.) One mole of an ideal gas with constant heat capacities and ? 5/3 is compressed adiabatically in a piston-cylinder device from T1-300 K, pi = 1 bar to p2 = 10 bar at a constant external pressure Pext"- P2 -10 bar. Calculate the final temperature, T2, and W, Q. AU, AH for this process. 2. (20 pts.) Repeat problem 1 for an adiabatic and reversible compression. 3. (20 pts.) A rigid, insulated tank is divided into two...
A polytropic process for an ideal gas in one in which pressure and volume are related...
A polytropic process for an ideal gas in one in which pressure and volume are related by = const., where n is a constant. It is a generalization of the special processes considered earlier. Thus n = 0 defines an isobaric process, n = cp/cv an adiabatic process, n = 1 an isothermal process, and n = 8 an isochoric process. Suppose 1 kg of dry air at 280 K and 100 kPa undergoes a polytropic expansion in which the...
3.111 Air contained in a piston-cylinder assembly contains air, initially at 2 bar, 300 K and...
3.111 Air contained in a piston-cylinder assembly contains air, initially at 2 bar, 300 K and a volume of 2 m^3. The air undergoes a process to a state where pressure is 1 bar, during which the pressure-volume relationship is PV=constant. Assuming ideal gas behavior for air, determine the mass of the air, in kg and the work and heat transfer, each in KJ.
Air contained in a piston-cylinder assembly, initially at 2 bar, 200 K, and a volume of 1 L, unde...
Air contained in a piston-cylinder assembly, initially at 2 bar, 200 K, and a volume of 1 L, undergoes a process to a final state where the pressure is 8 bar and the volume is 2 L During the process, the pressure-volume relationship is linear. Assuming the ideal gas model for the air, determine the work and heat transfer, each in kJ. 4.
Air contained in a piston-cylinder assembly, initially at 2 bar, 200 K, and a volume of 1...
1.Argon contained in a closed, rigid tank, initially at 62.3°C, 3.9 bar, and a volume of...
1.Argon contained in a closed, rigid tank, initially at 62.3°C, 3.9 bar, and a volume of 4.2 m3, is heated to a final pressure of 9.4 bar. Assuming the ideal gas model with k = 1.6 for the argon, determine the heat transfer, in kJ. 2.Water vapor contained in a piston–cylinder assembly undergoes an isothermal expansion at 223°C from a pressure of 5.4 bar to a pressure of 1.9 bar. Evaluate the work, in kJ/kg. 3.A mass of 4 kilograms...
A process has been proposed whereby an ideal gas is taken from P=10 bar and T=300...
A process has been proposed whereby an ideal gas is taken from P=10 bar and T=300 K to P=1 bar and T=500K in a closed system. During the process the system performs 1,000 [J] of work and receives 6,430 [J] of heat from the surroundings at a constant temperature of 300 K. The constant pressure heat capacity of the gas cp=30 [J/(mol K)] . Gas constant R=8.314 [J/(mol K)]. (a) (7 pts.) What is the change of molar internal energy...
WORK-OUT PROBLEM #2: An ideal gas with Cym=1.5R, initially at Ti=300 K, P:= 1.10 bar, V1-10 L is heated isochorically until P2=9.80 bar. It then undergoes gradual adiabatical expansion until Ps=P. Finally, it is resorted back to its original state by extraction of heat at constant pressure a) Depict process in a P-V diagram and shade the total work b) Calculate work for each step (W1, W2 and w3). c) What is the value for q, AU and AH for...
I. (30 pts.) One mole of an ideal gas with constant heat capacities and ? 5/3 is compressed adiabatically in a piston-cylinder device from T1-300 K, pi = 1 bar to p2 = 10 bar at a constant external pressure Pext"- P2 -10 bar. Calculate the final temperature, T2, and W, Q. AU, AH for this process. 2. (20 pts.) Repeat problem 1 for an adiabatic and reversible compression. 3. (20 pts.) A rigid, insulated tank is divided into two...
Air contained in a piston-cylinder assembly, initially at 2 bar, 200 K, and a volume of 1 L, undergoes a process to a final state where the pressure is 8 bar and the volume is 2 L During the process, the pressure-volume relationship is linear. Assuming the ideal gas model for the air, determine the work and heat transfer, each in kJ. 4.
Air contained in a piston-cylinder assembly, initially at 2 bar, 200 K, and a volume of 1...
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