Explanation Given data: M = 70 kg , Δ t = 30 min and P = 1000 W . Formula used: Write the expression for thermal energy ( Q ) . Q = M c Δ T (1) Here, M is the mass, c is the specific heat, and Δ T is the change in temperature. Write the expression for heat loss ( P ) P = Q Δ t (2) Here, Δ t is the change in time. Consider the conversion factor for minutes to seconds. 1 min = 60 s . Explanation: Consider the conversion factor for minutes to seconds. Δ t = 30 ( 60 s ) = 1 , 800 s Rearrange equation (2). Q = P Δ t Substitute 1 , 000 W for P and 1 , 800 s for Δ t , Q = ( 1 , 000 W ) ( 1 , 800 s ) = 1.8 × 10 6 J Refer to TABLE 12.4 in the textbook for Specific heats of solids and liquids, that is c mammalian body = 3 , 400 J kg ⋅ K

College Physics: A Strategic Approach (3rd Edition)

3rd Edition

ISBN: 9780321879721

Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher: PEARSON

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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.

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Chapter 12, Problem 45P

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To find: The rise of body temperature during exercise.

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Chapter 12, Problem 44P

Chapter 12, Problem 46P

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Chapter 12 Solutions

College Physics: A Strategic Approach (3rd Edition)

Ch. 12 - Which has more mass, a mole of Ne gas or a mole of...Ch. 12 - If you launch a projectile upward with a high...Ch. 12 - Prob. 3CQ Ch. 12 - If you buy a sealed bag of potato chips in Miami...Ch. 12 - If you double the typical speed of the molecules...Ch. 12 - Two gases have the same number of molecules per...Ch. 12 - a. Which contains more particles, a mole of helium...Ch. 12 - If the temperature T of an ideal gas doubles, by...Ch. 12 - A bottle of helium gas and a bottle of argon gas...Ch. 12 - A gas cylinder contains 1.0 mol of helium at a...

Ch. 12 - Prob. 11CQ Ch. 12 - Prob. 12CQ Ch. 12 - What is the maximum amount of work that a gas can...Ch. 12 - You need to precisely measure the dimensions of a...Ch. 12 - A common trick for opening a stubborn lid on a jar...Ch. 12 - Your cars radiator is made of steel and is filled...Ch. 12 - Materials A and B have equal densities, but A has...Ch. 12 - Prob. 18CQ Ch. 12 - You need to raise the temperature of a gas by 10C....Ch. 12 - A sample of ideal gas is in a cylinder with a...Ch. 12 - A student is heating chocolate in a pan on the...Ch. 12 - If you bake a cake at high elevation, where...Ch. 12 - The specific heat of aluminum is higher than that...Ch. 12 - A student is asked to sketch a pV diagram for a...Ch. 12 - In some expensive cookware, the pot is made of...Ch. 12 - If you live somewhere with cold, clear nights, you...Ch. 12 - Prob. 27MCQ Ch. 12 - Prob. 28MCQ Ch. 12 - A gas is compressed by an isothermal process that...Ch. 12 - Prob. 30MCQ Ch. 12 - Prob. 31MCQ Ch. 12 - Prob. 32MCQ Ch. 12 - Prob. 33MCQ Ch. 12 - Prob. 34MCQ Ch. 12 - 100 g of ice at 0C and 100 g of steam at 100C...Ch. 12 - Suppose the 600 W of radiation emitted in a...Ch. 12 - Prob. 37MCQ Ch. 12 - Prob. 38MCQ Ch. 12 - Prob. 1P Ch. 12 - How many grams of water (H2O) have the same number...Ch. 12 - Prob. 3P Ch. 12 - How many cubic millimeters (mm3) are in 1 L?Ch. 12 - Prob. 5P Ch. 12 - Prob. 6P Ch. 12 - An ideal gas is at 20C. The gas is cooled,...Ch. 12 - An ideal gas at 0C consists of 1.0 1023 atoms. 10...Ch. 12 - An ideal gas at 20C consists of 2.2 1022 atoms....Ch. 12 - Dry ice is frozen carbon dioxide. If you have 1.0...Ch. 12 - Prob. 11P Ch. 12 - Prob. 12P Ch. 12 - Prob. 13P Ch. 12 - When you stifle a sneeze, you can damage delicate...Ch. 12 - Prob. 15P Ch. 12 - Mars has an atmosphere composed almost entirely of...Ch. 12 - 3.0 mol of gas at a temperature of 120C fills a...Ch. 12 - The lowest pressure ever obtained in a laboratory...Ch. 12 - Helium has the lowest condensation point of any...Ch. 12 - A cylinder contains 3.0 L of oxygen at 300 K and...Ch. 12 - A gas with initial conditions pi, Vi, and Ti...Ch. 12 - 0.10 mol of argon gas is admitted to an evacuated...Ch. 12 - 0.10 mol of argon gas is admitted to an evacuated...Ch. 12 - 0.10 mol of argon gas is admitted to an evacuated...Ch. 12 - 0.0040 mol of gas undergoes the process shown in...Ch. 12 - 0.0040 mol of gas follows the hyperbolic...Ch. 12 - A gas with an initial temperature of 900C...Ch. 12 - How much work is done on the gas in the process...Ch. 12 - It is possible to make a thermometer by sealing...Ch. 12 - A 1.0 cm3 air bubble is released from the sandy...Ch. 12 - A weather balloon rises through the atmosphere,...Ch. 12 - A straight rod consists of a 1.2-cm-long piece of...Ch. 12 - The length of a steel beam increases by 0.73 mm...Ch. 12 - The length of a steel beam increases by 0.73 mm...Ch. 12 - A circular hole in a steel plate is 2.000 cm in...Ch. 12 - At 20C, the hole in an aluminum ring is 2.500 cm...Ch. 12 - The temperature of an aluminum disk is increased...Ch. 12 - Prob. 38P Ch. 12 - How much heat is needed to change 20 g of mercury...Ch. 12 - a. 100 J of heat energy are transferred to 20 g of...Ch. 12 - Prob. 41P Ch. 12 - Prob. 42P Ch. 12 - Alligators and other reptiles dont use enough...Ch. 12 - When air is inhaled, it quickly becomes saturated...Ch. 12 - Prob. 45P Ch. 12 - What minimum heat is needed to bring 100 g of...Ch. 12 - 30 g of copper pellets are removed from a 300C...Ch. 12 - A copper block is removed from a 300C oven and...Ch. 12 - A 750 g aluminum pan is removed from the stove and...Ch. 12 - A 500 g metal sphere is heated to 300C, then...Ch. 12 - Brewed coffee is often too hot to drink right...Ch. 12 - Native Americans boiled water by adding very hot...Ch. 12 - Marianne really likes coffee, but on summer days...Ch. 12 - If a person has a dangerously high fever,...Ch. 12 - A container holds 1.0 g of argon at a pressure of...Ch. 12 - A container holds 1.0 g of oxygen at a pressure of...Ch. 12 - What is the temperature change of 1.0 mol of a...Ch. 12 - Prob. 58P Ch. 12 - Adding 150 J of heat to 0.50 mol of a monatomic...Ch. 12 - Heating 2.5 mol of neon in a rigid container...Ch. 12 - A 1.8-cm-thick wood floor covers a 4.0 m 5.5 m...Ch. 12 - A stainless-steel-bottomed kettle, its bottom 24...Ch. 12 - What is the greatest possible rate of energy...Ch. 12 - What is the greatest possible rate of energy...Ch. 12 - Seals may cool themselves by using thermal...Ch. 12 - Electronics and inhabitants of the International...Ch. 12 - The glowing filament in a lamp is radiating energy...Ch. 12 - If you lie on the ground at night with no cover,...Ch. 12 - A college student is working on her physics...Ch. 12 - Prob. 70GP Ch. 12 - A rigid container holds 2.0 mol of gas at a...Ch. 12 - A 15-cm-diameter compressed-air tank is 50 cm...Ch. 12 - Prob. 73GP Ch. 12 - Prob. 74GP Ch. 12 - Suppose you take and hold a deep breath on a...Ch. 12 - On average, each person in the industrialized...Ch. 12 - On a cool morning, when the temperature is 15C,...Ch. 12 - Suppose you inflate your car tires to 35 psi on a...Ch. 12 - Prob. 79GP Ch. 12 - An empty flask is placed in boiling water for a...Ch. 12 - 80 J of work are done on the gas in the process...Ch. 12 - How much work is done by the gas in the process...Ch. 12 - Prob. 83GP Ch. 12 - 10 g of dry ice (solid CO2) is placed in a 10,000...Ch. 12 - Prob. 85GP Ch. 12 - A 5.0-m-diameter garden pond holds 5.9 103 kg of...Ch. 12 - 0.030 mol of an ideal monatomic gas undergoes an...Ch. 12 - James Joule (after whom the unit of energy is...Ch. 12 - Prob. 89GP Ch. 12 - Prob. 90GP Ch. 12 - A 68 kg woman cycles at a constant 15 km/h. 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