Explanation Given that the volume of air inhaled is 0.50 L , the initial temperature of air is 20 °C ( 293.15 K ), the initial pressure is 100 kPa , and the final temperature is 37 °C ( 310.15 K ). Write the expression for the molar specific heat at constant pressure of an ideal diatomic gas. C p = 7 2 R (I) Here, C p is the molar specific heat at constant pressure, R is the universal gas constant. Write the ideal gas law equation for the gas. P V = n R T i (II) Here, P is the pressure, V is the volume, n is the number of moles, and T i is the initial temperature. Solve equation (II) for n . n = P V R T i (III) Write the expression for the heat energy required to raise the temperature of the gas. Q = n C p Δ T (IV) Here, Q is the heat, , and Δ T is the change in temperature. Use equation (I) and (III) in (IV) and expand the term Δ T . Q = ( P V R T i ) ( 7 2 R ) ( T f − T i ) = 7 P V 2 T i ( T f − T i ) (V) Here, T f is the final temperature

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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.

Question

Chapter 15, Problem 78P

To determine

The amount of heat flowing from the body to the air.

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Chapter 15, Problem 77P

Chapter 15, Problem 79P

Chapter 15 Solutions

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Ch. 15.1 - Prob. 15.1PP Ch. 15.2 - Prob. 15.2CP Ch. 15.3 - Prob. 15.2PP Ch. 15.3 - Prob. 15.3PP Ch. 15.4 - Prob. 15.4PP Ch. 15.4 - Prob. 15.4CP Ch. 15.5 - Prob. 15.5PP Ch. 15.6 - Prob. 15.6PP Ch. 15.7 - Prob. 15.7PP Ch. 15.7 - Prob. 15.8PP

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