Fundamentals of Engineering Thermodynamics
8th Edition
ISBN: 9781118412930
Author: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey
Publisher: WILEY
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Chapter 11.9, Problem 14CU
To determine
What are the independent variables of the Helmholtz function?
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2. Read the following Vernier caliper measurements. (The scales have been
enlarged for easier reading.) The Vernier caliper is calibrated in metric units.
(a)
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4 5
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(b)
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(c)
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(d)
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Explain why on the interval 0<x<1000 mm and 1000<x<2000mm, Mt is equal to positive 160 Nm, but at x= 0mm and x=1000mm Mt is equal to -160 Nm (negative value!). What is the reason for the sign change of Mt?
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Gears
1079
A pair of helical gears consist of a 20 teeth pinion meshing with a 100 teeth gear. The pinion rotates at
Ta
720 r.p.m. The normal pressure angle is 20° while the helix angle is 25°. The face width is 40 mm and
the normal module is 4 mm. The pinion as well as gear are made of steel having ultimate strength of
600 MPa and heat treated to a surface hardness of 300 B.H.N. The service factor and factor of safety
are 1.5 and 2 respectively. Assume that the velocity factor accounts for the dynamic load and calculate
the power transmitting capacity of the gears.
[Ans. 8.6 kW
Chapter 11 Solutions
Fundamentals of Engineering Thermodynamics
Ch. 11.9 - Prob. 1ECh. 11.9 - Prob. 2ECh. 11.9 - 3. What is an advantage of using the Redlich–Kwong...Ch. 11.9 - To determine the specific volume of superheated...Ch. 11.9 - Prob. 5ECh. 11.9 - Prob. 6ECh. 11.9 - Prob. 7ECh. 11.9 - Prob. 8ECh. 11.9 - Prob. 9ECh. 11.9 - Prob. 10E
Ch. 11.9 - Prob. 11ECh. 11.9 - Prob. 12ECh. 11.9 - Prob. 13ECh. 11.9 - Prob. 14ECh. 11.9 - Prob. 15ECh. 11.9 - Prob. 1CUCh. 11.9 - Prob. 2CUCh. 11.9 - Prob. 3CUCh. 11.9 - 4. Evaluate the compressibility factor Z of water...Ch. 11.9 - Prob. 5CUCh. 11.9 - Prob. 6CUCh. 11.9 - Prob. 7CUCh. 11.9 - Prob. 8CUCh. 11.9 - 9. For an ideal gas obtain expressions for the (a)...Ch. 11.9 - Prob. 10CUCh. 11.9 - Prob. 11CUCh. 11.9 - Prob. 12CUCh. 11.9 - Prob. 14CUCh. 11.9 - Prob. 15CUCh. 11.9 - Prob. 16CUCh. 11.9 - Prob. 17CUCh. 11.9 - Prob. 18CUCh. 11.9 - Prob. 19CUCh. 11.9 - Repeat parts (a)–(d) of Example 11.1 if the carbon...Ch. 11.9 - Prob. 21CUCh. 11.9 - Prob. 22CUCh. 11.9 - Prob. 23CUCh. 11.9 - Prob. 24CUCh. 11.9 - Prob. 25CUCh. 11.9 - Prob. 26CUCh. 11.9 - Prob. 27CUCh. 11.9 - Prob. 28CUCh. 11.9 - Prob. 29CUCh. 11.9 - Prob. 30CUCh. 11.9 - Prob. 31CUCh. 11.9 - Prob. 32CUCh. 11.9 - Prob. 33CUCh. 11.9 - Prob. 34CUCh. 11.9 - Prob. 35CUCh. 11.9 - Prob. 36CUCh. 11.9 - Prob. 37CUCh. 11.9 - Prob. 38CUCh. 11.9 - Prob. 39CUCh. 11.9 - Prob. 40CUCh. 11.9 - Indicate whether the following statements are true...Ch. 11.9 - Prob. 42CUCh. 11.9 - Prob. 43CUCh. 11.9 - Prob. 44CUCh. 11.9 - Prob. 45CUCh. 11.9 - Prob. 46CUCh. 11.9 - Prob. 47CUCh. 11.9 - Prob. 48CUCh. 11.9 - Prob. 49CUCh. 11.9 - Prob. 50CUCh. 11.9 - Owing to safety requirements, the pressure within...Ch. 11.9 - Ten pounds mass of propane have a volume of 2 ft3...Ch. 11.9 - The pressure within a 23.3-m3 tank should not...Ch. 11.9 - Estimate the pressure of water vapor at a...Ch. 11.9 - Prob. 7PCh. 11.9 - A rigid lank contains 1 kg of oxygen (O2) at p1 =...Ch. 11.9 - Prob. 11PCh. 11.9 - Prob. 13PCh. 11.9 - Prob. 14PCh. 11.9 - Prob. 15PCh. 11.9 - Prob. 16PCh. 11.9 - Prob. 17PCh. 11.9 - Prob. 18PCh. 11.9 - Prob. 20PCh. 11.9 - Prob. 21PCh. 11.9 - Prob. 22PCh. 11.9 - Prob. 23PCh. 11.9 - Using Eq. 11.35. check the consistency of
the...Ch. 11.9 - Prob. 25PCh. 11.9 - Prob. 26PCh. 11.9 - A gas enters a compressor operating at steady...Ch. 11.9 - Prob. 28PCh. 11.9 - Prob. 29PCh. 11.9 - The Mollier diagram provides a graphical...Ch. 11.9 - Derive the relation cp = −T(∂2g/∂T2)p.
Evaluating...Ch. 11.9 - Prob. 32PCh. 11.9 - Prob. 33PCh. 11.9 - Prob. 34PCh. 11.9 - Prob. 35PCh. 11.9 - Prob. 36PCh. 11.9 - At 0°C, the specific volumes of saturated solid...Ch. 11.9 - Prob. 38PCh. 11.9 - Prob. 39PCh. 11.9 - Prob. 42PCh. 11.9 - Prob. 43PCh. 11.9 - Prob. 44PCh. 11.9 - Prob. 46PCh. 11.9 - Prob. 47PCh. 11.9 - Prob. 48PCh. 11.9 - Prob. 49PCh. 11.9 - Prob. 50PCh. 11.9 - Prob. 51PCh. 11.9 - Prob. 52PCh. 11.9 - Prob. 53PCh. 11.9 - Prob. 54PCh. 11.9 - Develop expressions for the volume expansivity β...Ch. 11.9 - Prob. 56PCh. 11.9 - Prob. 57PCh. 11.9 - Prob. 58PCh. 11.9 - Prob. 59PCh. 11.9 - Prob. 60PCh. 11.9 - Prob. 61PCh. 11.9 - Prob. 62PCh. 11.9 - If the value of the specific heat cυ of air is...Ch. 11.9 - Prob. 65PCh. 11.9 - Prob. 66PCh. 11.9 - Prob. 67PCh. 11.9 - Prob. 68PCh. 11.9 - Prob. 69PCh. 11.9 - Determine the maximum Joule-Thomson inversion...Ch. 11.9 - Prob. 71PCh. 11.9 - Show that Eq. 11.77 can be written as
Using this...Ch. 11.9 - If the specific heat cv of a gas obeying the van...Ch. 11.9 - Prob. 75PCh. 11.9 - Prob. 76PCh. 11.9 - Prob. 77PCh. 11.9 - Prob. 78PCh. 11.9 - Prob. 79PCh. 11.9 - Prob. 80PCh. 11.9 - Prob. 81PCh. 11.9 - Prob. 82PCh. 11.9 - Prob. 83PCh. 11.9 - Prob. 84PCh. 11.9 - Prob. 85PCh. 11.9 - Prob. 86PCh. 11.9 - Prob. 87PCh. 11.9 - Prob. 88PCh. 11.9 - Oxygen (O2) undergoes a throttling process from...Ch. 11.9 - Prob. 90PCh. 11.9 - Prob. 91PCh. 11.9 - Prob. 92PCh. 11.9 - Prob. 93PCh. 11.9 - Prob. 94PCh. 11.9 - Prob. 95PCh. 11.9 - Prob. 96PCh. 11.9 - Prob. 97PCh. 11.9 - Prob. 99PCh. 11.9 - Prob. 100PCh. 11.9 - Prob. 101PCh. 11.9 - Prob. 102PCh. 11.9 - A rigid vessel initially contains carbon dioxide...Ch. 11.9 - Prob. 104PCh. 11.9 - Prob. 105PCh. 11.9 - Prob. 106PCh. 11.9 - Prob. 107PCh. 11.9 - Prob. 108PCh. 11.9 - Determine the fugacity, in atm, for
butane at 555...Ch. 11.9 - Using the equation of state of Problem 11.14(c),...Ch. 11.9 - Prob. 111PCh. 11.9 - Prob. 113PCh. 11.9 - Prob. 114PCh. 11.9 - Prob. 115PCh. 11.9 - Prob. 116PCh. 11.9 - Prob. 117PCh. 11.9 - Prob. 118PCh. 11.9 - Prob. 119PCh. 11.9 - Prob. 120PCh. 11.9 - Prob. 121PCh. 11.9 - Prob. 122PCh. 11.9 - Prob. 123PCh. 11.9 - A tank contains a mixture of 75% argon and 25%...Ch. 11.9 - Prob. 125PCh. 11.9 - Prob. 126PCh. 11.9 - Prob. 127PCh. 11.9 - Prob. 128P
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- 4. A single stage helical gear reducer is to receive power from a 1440 r.p.m., 25 kW induction motor. The gear tooth profile is involute full depth with 20° normal pressure angle. The helix angle is 23°, number of teeth on pinion is 20 and the gear ratio is 3. Both the gears are made of steel with allowable beam stress of 90 MPa and hardness 250 B.H.N. (a) Design the gears for 20% overload carrying capacity from standpoint of bending strength and wear, (b) If the incremental dynamic load of 8 kN is estimated in tangential plane, what will be the safe power transmitted by the pair at the same speed?arrow_forwardDetermine the stress in each section of the bar shown in Fig. when subjected to an axial tensile load shown in Fig. The central section is 30 mm hollow square cross- section; the other portions are of circular section, their diameters being indicated What will be the total deformation of the bar? For the bar material E = 210GPa. 20mi О 30mm 30mmm 2.6 15mm 30kN 1 2 10kN - 20kN 3 -329 91mm 100mm 371mmarrow_forwardCalculate the load that will make point A move to the left by 6mm, E=228GPa. The diameters of the rods are as shown in fig. below. 2P- PA 80mm B 200mm 2P 0.9m 1.3m.arrow_forward
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