The expression 1W2 = (P1+P2)(V2-V1)/2 is used to calculate the work for:
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A process where the substance pushes against a linear spring |
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A substance undergoing a constant pressure process |
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A substance undergoing a polytropic process |
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A substance undergoing an isentropic process. |
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The expression 1W2 =
(P1+P2)(V2-V1)/2 is
used to calculate the work for:
A process where the...
Situation 1: A gas expands at constant pressure P1 from volume V1 to volume V2. It...
Situation 1: A gas expands at constant pressure P1 from volume V1 to volume V2. It is then kept at constant volume while the pressure is reduced to P2. Situation 2: A gas is reduced in pressure from P1 to P2 while its volume is held constant at V1. It is then expanded at constant pressure P2 to a final volume V2. In which of the processes is more work done by the gas? Why?
P1= 5 bars, P2 = ?, V1 = .3 m^3 , V2 = .7 m^3, Cv...
P1=
5 bars, P2 = ?, V1 = .3 m^3 , V2 = .7 m^3, Cv = .5 KJ/kgK, dv = 2.5
KJ/kg
*du
= 2.5 KJ/ Kg
PART B(1) A gas mixture expands with a known pressure-volume relation, PVConst. The gas mixture behaves as an ideal gas. The process is polytropic with n=1.3. Kinetic and Potential energy effects are or (plv1)in(v2/v1), dU=mCvdT, 1 bar-10 N/sq.m, 1 kJ-10 N.m, Universal gas constant(R)- 8.314 kJ/(kmol.K)= MR, Please refer to the given...
A gas is compressed from V1 = 0.3 m3, p1 = 1 bar to V2 =...
A gas is compressed from V1 = 0.3 m3, p1 = 1 bar to V2 = 0.1 m3, p2 = 1.9 bar. Pressure and volume are related linearly during the process. For the gas, find the work, in kJ.
Ex 2 Please complete the required calculations in the table }p2 V1 V2 P2 theory Lab...
Ex 2
Please complete the required calculations in the table
}p2
V1
V2
P2 theory
Lab 5: Bernaulli's Principle Demonstration Inlet Experimental Experimental Inlet Flow Throat flow Theoretical Volumetric Volumetric Inlet flow rate flow rate pressure pressure Throat speed speed Throat Pressure 2 P2 Theary Error Throat pressurepressure P2 Experiment v1 P1 P1 P2 Experiment Bar m/sec Pascal m3/sec Ba 10.x 20 3.xiOl LOOO FO.48 Water Density 1000 kg/m Venturi throat area (A)-0.000036 m Water temperature Venturi inlet area IA:...
1. (12 points) A cyclic process is given in the figure below. It starts at P1,...
1. (12 points) A cyclic process is given in the figure below. It starts at P1, Vi, goes along path A to P2, V2, and then returns to the start by going along path B. p is the pressure and V is the volume. This system is an ideal gas, which obeys the “ideal gas law": pV = NKT (this is sometimes called the equation of state). (a) Calculate the total work done. This will be a formula in terms...
A gas undergoes a process from state 1, where p1 = 60 lbf/in.2, v1 = 6.0...
A gas undergoes a process from state 1, where p1 = 60 lbf/in.2, v1 = 6.0 ft3/lb, to state 2 where p2 = 85.1 lbf/in.2, according to pv1.3 = constant. The relationship between pressure, specific volume, and internal energy is u = (0.2651)pv - 95.436 where p is in lbf/in.2, v is in ft3/lb, and u is in Btu/lb. The mass of gas is 10 lb. Neglecting kinetic and potential energy effects, determine the heat transfer, in Btu. Entry field...
1. a) Calculate the angle between the vectors V1 = (2, 3,-4) and v2 =(-3, 4,...
1. a) Calculate the angle between the vectors V1 = (2, 3,-4) and v2 =(-3, 4, 2) b) Are the vectors P1 = (2, 4, -3) and p2 = (4, 1, 4) orthogonal? Why or why not? c) What is the distance between pı and pz? d) Calculate the cross product, pe X P2.
Please show work Problem 2. Consider the vectors [1] 1 1 v1 = 1, V2 =...
Please show work
Problem 2. Consider the vectors [1] 1 1 v1 = 1, V2 = -1, V3 = -3 , 04 = , 05 = 6 Let S CR5 be defined by S = span(V1, V2, V3, V4, 05). A. Find a basis for S. What is the dimension of S? B. For each of the vectors V1, V2, V3, V4.05 which is not in the basis, express that vector as linear combination of the basis vectors. C. Consider...
Air undergoes an isentropic process from p1=1atm, T1=540R to a final state where the temperature is...
Air undergoes an isentropic process from p1=1atm, T1=540R to a final state where the temperature is T2=1160R. employing the ideal gas model, determine the final pressure p2, in atm. Assume a constant specific ratio k evaluated at the mean temperature.
3.1 moles of ideal gas undergo an expansion from V1 = 1.2 m3 to V2 =...
3.1 moles of ideal gas undergo an expansion from V1 = 1.2 m3 to V2 = 1.7 m3 during an isothermal process taking place at T = 25 degree C. Calculate Delta U, Delta H, Q, W when The expansion takes place in The following conditions: A reversible expansion. A rapid non-reversible expansion against a constant surrounding pressure equal to The final pressure of The gas. A free expansion where The gas expands in vacuum against zero external pressure.
P1=
5 bars, P2 = ?, V1 = .3 m^3 , V2 = .7 m^3, Cv = .5 KJ/kgK, dv = 2.5
KJ/kg
*du
= 2.5 KJ/ Kg
PART B(1) A gas mixture expands with a known pressure-volume relation, PVConst. The gas mixture behaves as an ideal gas. The process is polytropic with n=1.3. Kinetic and Potential energy effects are or (plv1)in(v2/v1), dU=mCvdT, 1 bar-10 N/sq.m, 1 kJ-10 N.m, Universal gas constant(R)- 8.314 kJ/(kmol.K)= MR, Please refer to the given...
Ex 2
Please complete the required calculations in the table
}p2
V1
V2
P2 theory
Lab 5: Bernaulli's Principle Demonstration Inlet Experimental Experimental Inlet Flow Throat flow Theoretical Volumetric Volumetric Inlet flow rate flow rate pressure pressure Throat speed speed Throat Pressure 2 P2 Theary Error Throat pressurepressure P2 Experiment v1 P1 P1 P2 Experiment Bar m/sec Pascal m3/sec Ba 10.x 20 3.xiOl LOOO FO.48 Water Density 1000 kg/m Venturi throat area (A)-0.000036 m Water temperature Venturi inlet area IA:...
1. (12 points) A cyclic process is given in the figure below. It starts at P1, Vi, goes along path A to P2, V2, and then returns to the start by going along path B. p is the pressure and V is the volume. This system is an ideal gas, which obeys the “ideal gas law": pV = NKT (this is sometimes called the equation of state). (a) Calculate the total work done. This will be a formula in terms...
1. a) Calculate the angle between the vectors V1 = (2, 3,-4) and v2 =(-3, 4, 2) b) Are the vectors P1 = (2, 4, -3) and p2 = (4, 1, 4) orthogonal? Why or why not? c) What is the distance between pı and pz? d) Calculate the cross product, pe X P2.
Please show work
Problem 2. Consider the vectors [1] 1 1 v1 = 1, V2 = -1, V3 = -3 , 04 = , 05 = 6 Let S CR5 be defined by S = span(V1, V2, V3, V4, 05). A. Find a basis for S. What is the dimension of S? B. For each of the vectors V1, V2, V3, V4.05 which is not in the basis, express that vector as linear combination of the basis vectors. C. Consider...
3.1 moles of ideal gas undergo an expansion from V1 = 1.2 m3 to V2 = 1.7 m3 during an isothermal process taking place at T = 25 degree C. Calculate Delta U, Delta H, Q, W when The expansion takes place in The following conditions: A reversible expansion. A rapid non-reversible expansion against a constant surrounding pressure equal to The final pressure of The gas. A free expansion where The gas expands in vacuum against zero external pressure.
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