A 60.0-kg runner expends 342 W of power while running a marathon. Assuming 14.0% of the energy is delivered to the muscle tissue and that the excess energy is removed from the body by sweating, determine the volume of bodily fluid (assume it is water) lost per hour. (At 37.0°C the latent heat of vaporization of water is 2.41 ✕ 106 J/kg.) ______________cm3

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Q: An electrical power station uses 1.58 x 1014 J of heat Input with an efficiency of 35.7%. (a) How…

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Q: A gasoline engine takes in 1.61 * 10^4 Jof heat and delivers 3700 J of work per cycle. The heat is…

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Q: We heat water in a pool with dimensions 10 × 5.0 × 2.0 m3 with a heater so that the temperature is…

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Q: A gasoline engine takes in 1.61×104 J of heat and delivers 3700 J of work per cycle. The heat is…

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Q: A gas is compressed inside a cylinder. An average force of 68 N acts to move the piston 1.5 m.…

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Q: Air conditioners sold in the United States are given a seasonal energy-efficiency ratio (SEER)…

A: Temperature inside = 24∘ C = 24 +273 K =297 K Temperature outside =35∘C=35+273K =308 K To find SEER…

Q: - What is the change in internal energy (in J) of a system that does 4.50 ✕ 105 J of work while…

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Q: The internal energy of a system is initially 24 J. The system does 25 J of work. What is the…

A: Given data:  Initial internal energy (Ui) = 24 J Work done by the system (W) = 25 J Heat added to…

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A: Given data: Temperature of hot reservoir, Th=558 K Temperature of cold reservoir, Tc=305 K Output…

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Q: A system does 137 J of work on its environment and gains 95.3 J of heat in the process. Find the…

A: The work done by the system on the environment,

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Q: You are boiling water in a pot on the stove for your tea. Being the brilliant scientist you are, you…

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Q: Consider the change in the internal energy of a system.  what is the change in the internal…

A: Given data: The work done by the system, δW=4.75×105 J   The heat supply to the system, δQ1=3.05×106…

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Q: (a) How many joules of energy are the equivalent of one jelly doughnut? (b) How many stairs must the…

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Q: Problem 12: A system does 1.9 × 108 J of work while 5.5 x 108 J of heat is transferred from the…

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Q: week 5 #10 A power plant burns coal to produce pressurized steam at 543 K. The steam then condenses…

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Q: An air-filled cylinder with a movable piston has a heat reservoir in contact with it. The heat…

A: GivenEnergy transfer into the cylinder (∆Q) = 850 JWork done by the piston on the environment (∆W) =…

Q: A 46-kg woman cheats on her diet and eats a 555-Calorie (555 kcal) jelly doughnut for breaktast. (a)…

A: In this question it is given that a woman with weight 46 kg  is on dieting she cheats her diet and…

Q: A chemical reaction transfers 8450 J of thermal energy into 11.8 moles of an ideal gas while the…

A: Given:Thermal energy,Q=8450 JNumber of moles,n=11.8Constant pressure,P=1.69 ✕ 105 PaVolume…

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A: Workdone, W = 500 J Heat transferred, Q = -9400 J

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Q: Work of 2250 J is done by stirring a perfectly insulated beaker containing 75 g of water. The…

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Q: A 46-kg woman eats a 522 Calorie (522 kcal) jelly doughnut for breakfast. (a) How many joules of…

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Q: A typical coal-fired power plant burns 340 metric tons of coal every hour to generate 2.5 × 106 MJ…

A: The efficiency of the power plant can be given by e=WoutQh×100%

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Q: Consider the change in the internal energy of a system. -What is the change in the internal energy,…

A: Given data: Work done by the system (W) = 4.725×105 J Heat added (Qin) = 3.2×106 J Heat rejected…

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Q: Over the course of a day, 4.0 kg of water evaporates from the leaves of a corn plant. a) How much…

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Q: Suppose that you have left a 200 mL cup of coffee sitting until it has cooled to 30◦ C, which you…

A: heat required = m * C * change in temperature H = 200 * 4.2 * (60 - 30) H = 25200 Joules Using,…

Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.