Question

1000 RxRod 500°R FIGURE P1.46 a. Sketch the variation of temperature with position through the rod, x. b. Is the rod in equilibrium? Explain 1.47 The normal temperature of the human body is 98.6°F+ 1°F. Determine the normal temperature range, in °C, for the human body .48 WP Air temperature rises from a morning low of 42°F to an afternoon high of 7o°F a. Express these temperatures in R, K, and °c Answer b. Determine the temperature change in °F, °R, K, and C from morning low to afternoon high. c. What conclusion do you draw about temperature change for F and °R scales? d. What conclusion do you draw about temperature change for °C and K scales? 1.49 For liquid-in-glass thermometers, the thermometric property is the change in length of the thermometer liquid with temperature. However, other effects are present that can affect the temperature reading of such thermometers. What are some of these? Design & Open-Ended Problems: Exploring Engineering Practice 1.1D In the United States today, nearly all of our electricity is produced by fossil-fuel power plants burning coal or natural gas, nuclear power plants and hydroelectric power plants. Using the Internet, determine the percent contributions of these types of electricity generation to the U.S. total. For each of the four types, determine at least three significant environmental considerations associated with it and how such environmental aspects affect the respective plant design, operation, and cost. Write a report with at least three references. 1.2D Hyperbaric chambers are used by medical professionals to treat several conditions. R least three medical conditions for which time in a hyperbarie chamber may be part of the prescribed treatment. Deseribe how this treatment addresses eseareh how a hyperbaric chamber functions, and identity at each condition. Present your findings in a memoran 1.3D Ecoloaical footorints measu um. ure humankind"s demands on nature. Using the Internet, estimate the amount of land and water needed annuallyo 458 PM ^亘雁4x 1/22/2019 oesese

could you please solve problem 1.48 ( a , b,c,and d )

Thank you

Answer 1

Q 1.48 a) We'll apply the temperature conversion equations from farhenheit to respective scale.

1) Farhenheit to rankine -

°F + 459.67 = °R

Therefore, morning low temperature =

( (42)+459.67) = 501.67 R

Afternoon high temperature = ((70)+459.67)= 529.67 R

2) Farhenheit to Kelvin

(°F − 32) × 5/9 + 273.15 = K

Morning low temperature

((42 - 32) x 5/9 + 273.15) = 278.706 K

Afternoon high temperature =

((70-32)x5/9 + 273.15)= 294.261 K

3) Farhenheit to celcius

(°F − 32) × 5/9 = °C

Morning low temperature =(42°F − 32) × 5/9 = 5.556°C

afternoon high temperature =(70°F − 32) × 5/9 = 21.111°C

Q 1.48 b) Temperature change in

1) Farhenheit = 70 - 42 = 28 °F

2) Rankine = 529.67 - 501.67 = 28°R

3) Kelvin = 294.26 - 278.706 = 18.555. K

4) Celcius = 21.111 - 5.556 = 18.555°C

Q 1.48 C) The temperature change in Farhenheit and rankine are same. The formula for conversion used is just an addition therefore, the difference generated in both the scales is same.

Q 1.48 D) The temperature change in Kelvin and celcius is equal. As in the conversion formula it can be seen that they're both multiplied by a factor of 5/9 and there is only the difference of the addition factor. Therefore the temperature change comes out to be the same.