Blood can carry excess heat from the interior to the surface of the body, where the heat is transferred to the outside environment. If 0.250 kg of blood at a temperature of 37.0 oC flows to the surface and loses 1500 J of heat, what is the temperature of the blood when it flows back into the interior? Assume blood has the same specific heat as water.
Answer to relevant QuestionsExplain why the process shown in Fig. 12.1b is not that for an ideal gas at constant temperature. If heat engine A absorbs more heat than heat engine B from a hot reservoir, will engine A necessarily do more net work than engine B? Explain your reasoning. While playing in a tennis match, you lost 6.5 x 105 of heat, and your internal energy also decreased by 1.2 x 106J. How much work did you do in the match? One handred moles of a monatomic gas is com-pressed as shown on the p–V diagram in Fig. 12.23. (a) Is the work done by the gas (1) positive, (2) zero, or (3) negative? Why? (b) What is the work done by the gas? (c) What ...A quantity of an ideal gas undergoes an isothermal expansion at 20 oC and does 3.0 x 103 J of work on its surroundings in the process. (a) Will the entropy of the gas (1) increase, (2) remain the same, or (3) decrease? ...
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