Fundamentals Of Engineering Thermodynamics
9th Edition
ISBN: 9781119391388
Author: MORAN, Michael J., SHAPIRO, Howard N., Boettner, Daisie D., Bailey, Margaret B.
Publisher: Wiley,
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Chapter 1, Problem 1.47P
To determine
The equivalent temperature of a human body in
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A cold drink initially at 40°F warms up to 44°F in 3 min while sitting in a room of temperature 70°F. How warm will the drink be if left out for 30 min?
If the drink is left out for 30 min, it will be about
(Round to the nearest tenth as needed.)
°F.
The Sahara desert with a very arid climate is one of the hottest regions in the world. Its average temperature is above 30°C or 86°F. In a 24-hour period, the temperature can go from a day-time high of 95°F to a low of 32°F at night.
(a) By how many Celsius degrees does the temperature fall in the 24-hour period?
°C
(b) By how many Kelvin degrees does the temperature fall in the 24-hour period?
K
The value of the temperature expressed using the Celsius temperature scale is always higher than its value expressed using the Kelvin scale. True or False?Explain.
Chapter 1 Solutions
Fundamentals Of Engineering Thermodynamics
Ch. 1 - Prob. 1.2ECh. 1 - Prob. 1.3ECh. 1 - Prob. 1.4ECh. 1 - Prob. 1.5ECh. 1 - Prob. 1.6ECh. 1 - Prob. 1.7ECh. 1 - Prob. 1.8ECh. 1 - Prob. 1.9ECh. 1 - Prob. 1.10ECh. 1 - Prob. 1.11E
Ch. 1 - Prob. 1.12ECh. 1 - Prob. 1.13ECh. 1 - Prob. 1.14ECh. 1 - Prob. 1.1CUCh. 1 - Prob. 1.2CUCh. 1 - Prob. 1.3CUCh. 1 - Prob. 1.4CUCh. 1 - Prob. 1.5CUCh. 1 - Prob. 1.6CUCh. 1 - Prob. 1.7CUCh. 1 - Prob. 1.8CUCh. 1 - Prob. 1.9CUCh. 1 - Prob. 1.10CUCh. 1 - Prob. 1.11CUCh. 1 - Prob. 1.12CUCh. 1 - Prob. 1.13CUCh. 1 - Prob. 1.14CUCh. 1 - Prob. 1.15CUCh. 1 - Prob. 1.16CUCh. 1 - Prob. 1.17CUCh. 1 - Prob. 1.18CUCh. 1 - Prob. 1.19CUCh. 1 - Prob. 1.20CUCh. 1 - Prob. 1.21CUCh. 1 - Prob. 1.22CUCh. 1 - Prob. 1.23CUCh. 1 - Prob. 1.24CUCh. 1 - Prob. 1.25CUCh. 1 - Prob. 1.26CUCh. 1 - Prob. 1.27CUCh. 1 - Prob. 1.28CUCh. 1 - Prob. 1.29CUCh. 1 - Prob. 1.30CUCh. 1 - Prob. 1.31CUCh. 1 - Prob. 1.32CUCh. 1 - Prob. 1.33CUCh. 1 - Prob. 1.34CUCh. 1 - Prob. 1.35CUCh. 1 - Prob. 1.36CUCh. 1 - Prob. 1.37CUCh. 1 - Prob. 1.38CUCh. 1 - Prob. 1.39CUCh. 1 - Prob. 1.40CUCh. 1 - Prob. 1.41CUCh. 1 - Prob. 1.42CUCh. 1 - Prob. 1.43CUCh. 1 - Prob. 1.44CUCh. 1 - Prob. 1.45CUCh. 1 - Prob. 1.46CUCh. 1 - Prob. 1.47CUCh. 1 - Prob. 1.48CUCh. 1 - Prob. 1.49CUCh. 1 - Prob. 1.50CUCh. 1 - Prob. 1.51CUCh. 1 - Prob. 1.52CUCh. 1 - Prob. 1.53CUCh. 1 - Prob. 1.54CUCh. 1 - Prob. 1.55CUCh. 1 - Prob. 1.56CUCh. 1 - Prob. 1.57CUCh. 1 - Prob. 1.58CUCh. 1 - Prob. 1.4PCh. 1 - Prob. 1.5PCh. 1 - Prob. 1.6PCh. 1 - Prob. 1.7PCh. 1 - Prob. 1.8PCh. 1 - Prob. 1.9PCh. 1 - Prob. 1.10PCh. 1 - Prob. 1.11PCh. 1 - Prob. 1.12PCh. 1 - Prob. 1.13PCh. 1 - Prob. 1.14PCh. 1 - Prob. 1.16PCh. 1 - Prob. 1.17PCh. 1 - Prob. 1.18PCh. 1 - Prob. 1.19PCh. 1 - Prob. 1.20PCh. 1 - Prob. 1.21PCh. 1 - Prob. 1.22PCh. 1 - Prob. 1.23PCh. 1 - Prob. 1.24PCh. 1 - Prob. 1.25PCh. 1 - Prob. 1.26PCh. 1 - Prob. 1.27PCh. 1 - Prob. 1.28PCh. 1 - Prob. 1.29PCh. 1 - Prob. 1.30PCh. 1 - Prob. 1.31PCh. 1 - Prob. 1.32PCh. 1 - Prob. 1.33PCh. 1 - Prob. 1.34PCh. 1 - Prob. 1.35PCh. 1 - Prob. 1.36PCh. 1 - Prob. 1.37PCh. 1 - Prob. 1.38PCh. 1 - Prob. 1.39PCh. 1 - Prob. 1.40PCh. 1 - Prob. 1.41PCh. 1 - Prob. 1.42PCh. 1 - Prob. 1.43PCh. 1 - Prob. 1.44PCh. 1 - Prob. 1.45PCh. 1 - Prob. 1.46PCh. 1 - Prob. 1.47PCh. 1 - Prob. 1.48PCh. 1 - Prob. 1.49P
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- An ideal gas (at STP, standard temperature and pressure) occupies a volume of 22.4 liters. While absorbing heat from the surroundings, the gas isobarically expands to 32.4 liters. What is the change in the internal energy of the gas? 1.52 kJ 2.53 kJ O 4.45 kJ 0.75 kJarrow_forwardThermodynamics Answer the following questions and put the answer in the table below 1- A container filled with a sample of an ideal gas at the pressure of 1.5 atm. The gas is compressed isothermally to one-fourth of its original volume. What is the new pressure of the gas? (A) 2 atm (B) 3 atm (C) 4 atm (D) 5 atm (E) 6 atm 2- A container with rigid walls filled with a sample of ideal gas. The absolute temperature of the gas is doubled. What happens to the pressure of the gas? (A) Doubles (B) Quadruples (C) Triples (D) Decreased to one-half (E) Decreased to one-fourth 3- If the absolute temperature of a radiating object is doubled, by what factor does the rate of energy emission change? (A) 2 (B) 4 (C) 8 (D) 16 (E)32arrow_forwardAccording to Newton’s law of cooling, the rate at which the temperature of an object changes is proportional to the difference between its temperature and that of its surroundings. A cup of coffee at 200◦ in a room of temperature 70◦ is stirred continually and reaches 100◦ after 10 min. At what time was it at 120◦?arrow_forward
- 1. Determine the state of steam at a pressure of 12 bar with its specific volume of 0.175 m³/kg.arrow_forwardDuring an experimental test, gas in a cylinder undergoes an expansion and moves a piston. Pressure and volume data taken during the test is given in the table below. Find the thermodynamic work performed by the gas in the cylinder in the process of expanding from a volume of 0.50 liters to 1.20 liters. Use all of the data in the table in calculating the work. Volume (liters) Pressure (kPa) 0.50 1400 0.60 1090 0.70 875 0.80 725 0.90 615 1.00 560 1.10 525 1.20 500arrow_forwardWhat is the specific internal energy of water at 50°C with a specific enthalpy of 1500 kJ/kg? Report your answer to one decimal place using rounding.arrow_forward
- 1.16 cubic meter of a perfect gas at 1.7 bar and 16.3°C is compressed to a volume of 0.84 m³ and a pressure of 5.6 bar. Determine the final temperature in °C.arrow_forwardA temperature of a body is measured to be 26°C. Determine the temperature in °R.arrow_forwardDuring a polytropic process, 16 lb. of an ideal gas change state from 30.3 psia at 42.2 degree Fahrenheit to 20.9 psia. What will be the temp. if n is equal to 1.2?arrow_forward
- The average temperature of the atmosphere in the world is approximated as a function of altitude by the relation Tatm = 288.15 − 6.5z where Tatm is the temperature of the atmosphere in K and z is the altitude in km with z = 0 at sea level. Determine the average temperature of the atmosphere outside an airplane that is cruising at an altitude of 12,000 m.arrow_forwardPi (Pa) 151 T₁ (°C) Pf (Pa) 203 219 > Uf (L) 12 Vf (L) The table above shows the measurements taken while an ideal gas underwent an ISOTHERMAL process. Fill in the appropriate values for the table below. W (J) Tf (°C) 219 (J) 510 Q (J) -470arrow_forward2.8 kg of air is inside a closed, rigid tank as shown. Initially the air is at a pressure of 2.2 bar and a temperature of 29°C. The air undergoes a process to a final temperature of 130°C. What is the heat transfer to the system? Express the answer in kJ. rigid tank Air System boundaryarrow_forward
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