a) If it takes 5 BTU to raise the temperature of 5 lbm of an ideal...
a) If it takes 5 BTU to raise the temperature of 5 lbm of an ideal gas by 2 oF in a rigid tank, which of
o the following is correct? (cp, cv in BTU/lbm- F)
a)cp =0.5 b)cv =0.5 c)cv =1.0 d)cp =1.0 e)cv =2.0
b)What is the potential energy in ft-lbf of an object of mass 32.2 lbm, if the acceleration due to gravity is standard and the object is 1 ft above the datum plane?
a) 3.22 b) 1 c) 1036.8 d) 3220 e) 32.2
c)11) Which of the following choices is correct for the specific volume v of a highly compressed liquid?
a)v>vg b)vf <v<vg c)v<vf d) v=vf e)v~vg
Homework Answers
Add Answer to:
a) If it takes 5 BTU to raise the temperature of 5 lbm of an
ideal...
(3.14) An organic liquid at 185 F is to be cooled with water that is available...
(3.14) An organic liquid at 185 F is to be cooled with water that is available at 80°E. A double-pipe beat exchanger consisting of six hairpins connected in series will be used. The heat exchanger pipes are schedule 40. Bach hairpin is 20 ft long and is made with 2- and 1-in. stainless steel (k 9.4 Btu/h ft F) pipes. Flow rates and fuid properties, which may be assumed constant, are given below. The organic liquid will flow through the...
Known Answer: W12=-51.0 Btu, constant Cv: Q12= -19.2 Btu, Table A-22E: Q12=-18.8 Btu....... Please explain in...
Known Answer: W12=-51.0 Btu, constant Cv: Q12= -19.2 Btu, Table
A-22E: Q12=-18.8 Btu....... Please explain in detail how to use the
table.
3.145 Air is compressed in a piston-cylinder assembly from pi = 10 lbf/in?, T1 = 500°R to a final volume of K2 = 1 ft in a process described by pun = constant, where n= 1.25. The mass of air is 1/2 lbm. Assuming ideal gas behavior and neglecting kinetic and potential energy effects, determine the work and...
tance (160 ft) to meters. (The conversion factors are in Appendix B.) and (3.241 U derive...
tance (160 ft) to meters. (The conversion factors are in Appendix B.) and (3.241 U derive Equation (3.25). tance from 60 miles per hour (mph) is (b) Compute the average acceleration in meters/sec- measure of the brakes of an automobile. In this test, the ond and then use f ma to compute the average braking force in newtons. one brakes are applied while the car is traveling at a steady 60 mph. The braking distance is the distance from the...
When the temperature of a certain solid, rectangular object increases by Delta T, the length of...
When the temperature of a certain solid, rectangular object increases by Delta T, the length of one side of the object increases by 0.010% = 1.0 10^-4 of the original length. The increase in volume of the object due to this temperature increase is A. 0.01% = 1.0 10^-4 of the original volume. B. (0.010)^3 % = 0.0000010% = 1.0 10^-4 of the original volume. C. (1.0 10^-4)^3 = 0.0000000001% = 1.0 10^-12 of the original volume. D. 0.030% =...
Linear Momentum of an object is conserved At all times b. Only when the net external...
Linear Momentum of an object is conserved At all times b. Only when the net external force on the object is Zero When the net external torque on the object is Zero d. Never A truck of mass 4000 (kg) is moving at 10 (m/s). A car of mass 1000 (kg) is moving at 40 (m/s). So, the truck’s momentum, compared to the car, is Greater b. Smaller c. the same d. Cannot say without knowing their accelerations A 1000...
A six-lane freeway (three lanes in each direction) in rolling terrain has 10-ft lanes and obstructions...
A six-lane freeway (three lanes in each direction) in rolling terrain has 10-ft lanes and obstructions 4 ft from the right edge of the pavement. There are 4 ramps within 6 miles. A directional peak-hour volume of 4500 veh/h is observed, with 1250 vehicles arriving in the highest 15-min flow rate period. The traffic stream contains 15% heavy vehicles. What is the density and the corresponding level of service (LOS) of the traffic stream? Do not use on the chart...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible proce...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
solve no: 3.14 , 3.16, 3.19 please show each step and solve for beginners 120 Power...
solve no: 3.14 , 3.16, 3.19
please show each step and solve for beginners
120 Power System Analysis 3.12. A single-phase system similar to that shown in Figure 3.11 has two transformers A-B a B-C connected by a line B feeding a load at the receiving end C. The ratings and parame ter values of the components are 500 V/1.5 kV, 9.6 kVA. leakage reactance 5 % 1.2 kV/120 V, 7.2 kVA, leakage reactance 4 % series impedance (0.5 +...
(3.14) An organic liquid at 185 F is to be cooled with water that is available at 80°E. A double-pipe beat exchanger consisting of six hairpins connected in series will be used. The heat exchanger pipes are schedule 40. Bach hairpin is 20 ft long and is made with 2- and 1-in. stainless steel (k 9.4 Btu/h ft F) pipes. Flow rates and fuid properties, which may be assumed constant, are given below. The organic liquid will flow through the...
Known Answer: W12=-51.0 Btu, constant Cv: Q12= -19.2 Btu, Table
A-22E: Q12=-18.8 Btu....... Please explain in detail how to use the
table.
3.145 Air is compressed in a piston-cylinder assembly from pi = 10 lbf/in?, T1 = 500°R to a final volume of K2 = 1 ft in a process described by pun = constant, where n= 1.25. The mass of air is 1/2 lbm. Assuming ideal gas behavior and neglecting kinetic and potential energy effects, determine the work and...
tance (160 ft) to meters. (The conversion factors are in Appendix B.) and (3.241 U derive Equation (3.25). tance from 60 miles per hour (mph) is (b) Compute the average acceleration in meters/sec- measure of the brakes of an automobile. In this test, the ond and then use f ma to compute the average braking force in newtons. one brakes are applied while the car is traveling at a steady 60 mph. The braking distance is the distance from the...
When the temperature of a certain solid, rectangular object increases by Delta T, the length of one side of the object increases by 0.010% = 1.0 10^-4 of the original length. The increase in volume of the object due to this temperature increase is A. 0.01% = 1.0 10^-4 of the original volume. B. (0.010)^3 % = 0.0000010% = 1.0 10^-4 of the original volume. C. (1.0 10^-4)^3 = 0.0000000001% = 1.0 10^-12 of the original volume. D. 0.030% =...
A six-lane freeway (three lanes in each direction) in rolling terrain has 10-ft lanes and obstructions 4 ft from the right edge of the pavement. There are 4 ramps within 6 miles. A directional peak-hour volume of 4500 veh/h is observed, with 1250 vehicles arriving in the highest 15-min flow rate period. The traffic stream contains 15% heavy vehicles. What is the density and the corresponding level of service (LOS) of the traffic stream? Do not use on the chart...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
solve no: 3.14 , 3.16, 3.19
please show each step and solve for beginners
120 Power System Analysis 3.12. A single-phase system similar to that shown in Figure 3.11 has two transformers A-B a B-C connected by a line B feeding a load at the receiving end C. The ratings and parame ter values of the components are 500 V/1.5 kV, 9.6 kVA. leakage reactance 5 % 1.2 kV/120 V, 7.2 kVA, leakage reactance 4 % series impedance (0.5 +...
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