Science
ChemistryIntroductory Chemistry: A FoundationIt has been determined that the body can generate 5500 kJ of energy during one hour of strenuous exercise. Perspiration is the body’s mechanism for eliminating this heat. How many grams and how many liters of water would have to be evaporated through perspiration to rid the body of the heat generated during two hours of exercise? (The heat of vaporization of water is 40.6 kJ/mol.)

It has been determined that the body can generate 5500 kJ of energy during one hour of strenuous exercise. Perspiration is the body’s mechanism for eliminating this heat. How many grams and how many liters of water would have to be evaporated through perspiration to rid the body of the heat generated during two hours of exercise? (The heat of vaporization of water is 40.6 kJ/mol.)

BuyFind

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425
BuyFind

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425

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Chapter 10, Problem 83AP
Textbook Problem

It has been determined that the body can generate 5500 kJ of energy during one hour of strenuous exercise. Perspiration is the body’s mechanism for eliminating this heat. How many grams and how many liters of water would have to be evaporated through perspiration to rid the body of the heat generated during two hours of exercise? (The heat of vaporization of water is 40.6 kJ/mol.)

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Chapter 10 Solutions

Introductory Chemistry: A Foundation
Ch. 10.1 - at if energy were not conserved? How would this...Ch. 10.4 - u are calculating in a chemistry problem. What if...Ch. 10.5 - ercise 10.1 How many calories of energy correspond...Ch. 10.5 - ercise 10.2 Calculate the joules of energy...Ch. 10.5 - ercise 10.3 A 5.63-g sample of solid gold is...Ch. 10.5 - ercise 10.4 A 2.8-g sample of pure metal requires...Ch. 10.6 - ercise 10.5 The reaction that occurs in the heat...Ch. 10.7 - at if Hess’s law were not true? What are some...Ch. 10.7 - ercise 10.6 From the following information mg...Ch. 10.9 - government study concludes that burning fossil...
Ch. 10.10 - at if the first law of thermodynamics was true,...Ch. 10 - ook at Fig. 10.1 in your text. Ball A has stopped...Ch. 10 - friend of yours reads that the process of water...Ch. 10 - ou place hot metal into a beaker of cold water. ol...Ch. 10 - hat does it mean when the heat for a process is...Ch. 10 - ou place 100.0 g of a hot metal in 100.0 g of cold...Ch. 10 - xplain why aluminum cans make good storage...Ch. 10 - n Section 10.7, two characteristics of enthalpy...Ch. 10 - hat is the difference between quality and quality...Ch. 10 - hat is meant by the term driving forces? Why are...Ch. 10 - Give an example of a process in which matter...Ch. 10 - Explain in your own words what is meant by the...Ch. 10 - Consider the processes mg...Ch. 10 - What if energy was not conserved? How would this...Ch. 10 - The internal energy of a system is said to be the...Ch. 10 - Hydrogen gas and oxygen gas react violently to...Ch. 10 - Consider four 100.0-g samples of water, each in a...Ch. 10 - For each of the following situations ac. use the...Ch. 10 - How ¡s Hess’s law a restatement of the first law...Ch. 10 - Does the entropy of the system increase or...Ch. 10 - Predict the sign of for each of the following...Ch. 10 - l type='a'> represents the ability to do work or...Ch. 10 - hat is meant by potential energy? Give an example...Ch. 10 - hat is the kinetic energy of a particle of mass m...Ch. 10 - he total energy of the universe is _________.Ch. 10 - hat ¡s meant by a state function? Give an example.Ch. 10 - n Fig. 10.1, what kind of energy does ball A...Ch. 10 - tudents often confuse what is meant by heat and...Ch. 10 - f you spilled a cup of freshly brewed hot tea on...Ch. 10 - he random motions of the components of an object...Ch. 10 - How are the temperature of an object and the...Ch. 10 - In studying heat flows for chemical processes,...Ch. 10 - When a chemical system evolves energy, where does...Ch. 10 - The combustion of methane, is an exothermic...Ch. 10 - Are the following processes exothermic or...Ch. 10 - What do we mean by thermodynamics? What is the...Ch. 10 - The energy, E, of a system represents the sum of...Ch. 10 - Calculate for each of the following cases. l...Ch. 10 - If q for a process is a positive number, then the...Ch. 10 - For an endothermic process, q will have a...Ch. 10 - A system absorbs 215 kJ of heat, and 116 kJ of...Ch. 10 - How is the calorie defined? How does a Calorie...Ch. 10 - Write the conversion factors that would be...Ch. 10 - If 8.40 kJ of heat is needed to raise the...Ch. 10 - If it takes 654 J of energy to warm a 5.51-g...Ch. 10 - Convert the following numbers of calories or...Ch. 10 - Convert the following numbers of calories into...Ch. 10 - Covert the following numbers of kilojoules into...Ch. 10 - Convert the following numbers of calories or...Ch. 10 - Perform the indicated conversions. ol type='a'>...Ch. 10 - Perform the indicated conversions. 91.74 kcal into...Ch. 10 - .5 kJ of heat is applied to a 1012-g block of...Ch. 10 - What quantity of heat energy must have en applied...Ch. 10 - If 125 J of heat energy is applied to a block of...Ch. 10 - If 100. J of heat energy is applied to a 25-g...Ch. 10 - What quantity of heat is required to raise the...Ch. 10 - The “Chemistry in Focus” segment Coffee: Hot and...Ch. 10 - The “Chemistry in Focus” segment Nature Has Hot...Ch. 10 - In the “Chemistry in Focus” segment Firewalking:...Ch. 10 - The enthalpy change for a reaction that occurs at...Ch. 10 - A _________ is a device used to determine the heat...Ch. 10 - The enthalpy change for the reaction of hydrogen...Ch. 10 - For the reaction kJ per mole of formed. Calculate...Ch. 10 - The “Chemistry in Focus” segment Burning Calories...Ch. 10 - When ethanol (grain alcohol, is burned in oxygen,...Ch. 10 - Given the following hypothetical data: mg...Ch. 10 - Given the following data: mg...Ch. 10 - Given the following data: mg...Ch. 10 - Given the following data: mg...Ch. 10 - Consider the gasoline in your car’s gas tank. What...Ch. 10 - Although the total energy of the universe will...Ch. 10 - Why are petroleum products especially useful as...Ch. 10 - Why is the “quality” of energy decreasing in the...Ch. 10 - Where did the energy stored in wood, coal,...Ch. 10 - What does petroleum consist of? What are some...Ch. 10 - What does natural gas consist of? Where is natural...Ch. 10 - What was (tetraethyl lead used for in the...Ch. 10 - What are the four “stages” of coal formation? How...Ch. 10 - What is the “greenhouse effect”? Why is a certain...Ch. 10 - A _________ is some factor that tends to make a...Ch. 10 - What does it mean to say that “energy spread” and...Ch. 10 - If a reaction occurs readily but has an...Ch. 10 - Does a double-displacement reaction such as mg...Ch. 10 - What do we mean by entropy? Why does the entropy...Ch. 10 - A chunk of ice at room temperature melts, even...Ch. 10 - Which of the following is an endothermic process?...Ch. 10 - Which of the following statements is (are) true?...Ch. 10 - Perform the indicated conversions. ol type='a'>...Ch. 10 - Calculate the amount of energy required (in...Ch. 10 - If takes 1.25 kJ of energy to heat a certain...Ch. 10 - What quantity of heat energy would have to be...Ch. 10 - The specific heat capacity of gold is 0.13 J/g °C....Ch. 10 - Calculate the amount of energy required (in...Ch. 10 - If 10. J of heat is applied to 5.0-g samples of...Ch. 10 - A 50.1)-g sample of water at 100. °C is poured...Ch. 10 - A 25.0-g sample of pure iron at 85 °C is dropped...Ch. 10 - If 7.24 kJ of heat is applied to a 952-g block of...Ch. 10 - For each of the substances listed in Table 10.1,...Ch. 10 - A system releases 213 kJ of heat and has a...Ch. 10 - Calculate tor each of the following. l type='a'>...Ch. 10 - Calculate the enthalpy change when 5.00 g of...Ch. 10 - The overall reaction in commercial heat packs can...Ch. 10 - Consider the following equations: mg...Ch. 10 - It has been determined that the body can generate...Ch. 10 - Which of the following processes is (are)...Ch. 10 - Which of the following reactions is/are...Ch. 10 - The specific heat capacity of graphite is 0.71 J/g...Ch. 10 - A swimming pool, 10.0 in by 4.0 m, is filled with...Ch. 10 - Consider the reaction mg...Ch. 10 - Calculate for the reaction mg...

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