Microsoft Word - Cengel and Boles TOC _2-03-05_.doc

Chapter 4 | 195 18.0 MJ/kg for carbohydrates, 22.2 MJ/kg for proteins, and 39.8 MJ/kg for fats. These food groups are not entire ...

days.) Although the desire to get rid of the excess fat in a thin world may be overwhelming at times, starvation diets are not r ...

will gain weight whereas a person who consumes less calories than his or her body burns will lose weight. Yet, people who eat wh ...

person should consume no more calories than he or she can burn. Note that in people with high metabolic rates, the body dissipat ...

EXAMPLE 4–14 Burning Off Lunch Calories A 90-kg man had two hamburgers, a regular serving of french fries, and a 200-ml Coke for ...

Solution A person switches from regular potato chips to fat-free ones. The weight the person loses in one year is to be determin ...

Chapter 4 | 201 The amount of energy needed to raise the temperature of a unit mass of a substance by one degree is called the s ...

4–7 A piston–cylinder device initially contains 0.07 m^3 of nitrogen gas at 130 kPa and 120°C. The nitrogen is now expanded to a ...

Chapter 4 | 203 4 –19 The equation of state of a gas is given as (P 10/^2 ) RuT, where the units of and Pare m^3 /kmol and kPa ...

4 –30 A well-insulated rigid tank contains 5 kg of a saturated liquid–vapor mixture of water at l00 kPa. Initially, three-quarte ...

Chapter 4 | 205 4 –42 A 30-L electrical radiator containing heating oil is placed in a 50-m^3 room. Both the room and the oil in ...

(Table A–2b), and (c) the cpvalue at room temperature (Table A–2a). Answers:(b) 447.8 kJ/kg, (b) 448.4 kJ/kg, (c) 415.6 kJ/kg 4 ...

Chapter 4 | 207 4 –62 A piston–cylinder device whose piston is resting on top of a set of stops initially contains 0.5 kg of hel ...

a rate of 100 balls per minute. If the temperature of the balls after quenching is 74°C, determine the rate at which heat needs ...

Chapter 4 | 209 4 –84 Long cylindrical steel rods (r7833 kg/m^3 and cp 0.465 kJ/kg · °C) of 10-cm diameter are heat-treated by ...

of carbohydrates, and thus 100 Calories. An average person burns 700 Calories per hour while exercising on a treadmill. Determin ...

Chapter 4 | 211 is done during this process, determine the gas constant and the molar mass of the gas. Also, determine the const ...

212 | Thermodynamics 4 –124 One ton (1000 kg) of liquid water at 80°C is brought into a well-insulated and well-sealed 4-m 5-m ...

Chapter 4 | 213 0°C and 333.7 kJ/kg, respectively, and the density of water is 1 kg/L. 4 –129 Reconsider Prob. 4 –128. Using EES ...

the entire air remains at 30°C at all times. Determine the heat transfer for this process. 214 | Thermodynamics 4 –139 Repeat Pr ...