The body is designed to maintain a constant temperature of about 37 °C under normal healthy...
The average body temperature of a healthy person is 37.0°C. Boltzmann's constant is 1.38 × 10−23 J/K. If a fever increases the temperature to 38.0°C, by what percentage does the average kinetic energy of the molecules increase? Answer must be in percentage.
The average body temperature of a healthy person is 37.0°C. Boltzmann's constant is 1.38 × 10−23 J/K. If a fever increases the temperature to 37.8°C, by what percentage does the average kinetic energy of the molecules increase? ___%
6. The average body temperature of a healthy person is 37.0°C. Boltzmann's constant is 1.38 × 10−23 J/K. If a fever increases the temperature to 38.6°C, by what percentage does the average kinetic energy of the molecules increase? 7. In intergalactic space, there is an average of about one hydrogen atom per cubic centimeter and the temperature is 6.10 K. What is the absolute pressure? Boltzmann constant is 1.38 × 10−23 J/K. (answer is in Pa)
Typically, an individual's normal body temperature is about 37 degrees Celsius. When a body enters hypothermia, its temperature dramatically decreases below 35 degrees Celsius. In this situation, the body’s organs will slowly start to degrade in metabolic function and cardiac output and heart rate will become depressed. Likewise, in consequences, a fever, a body temperature between 38 to 42 degrees Celsius, may cause many systemic effects such as cognitive dysfunction and liver failure. In either case, it becomes equally important...
Humans and warm-blooded animals maintain a constant body temperature, which is typically higher than their environment. A. Estimate the maximum efficiency of a thermodynamic engine that is powered by this temperature difference in moderate climate conditions (the living organism is the hot reservoir and the environment is the cold reservoir). Take the temperature of the human body about 37∘C and assume a temperature of 8 ∘C for the environment. B. Determine the output power of such an engine if the...
P1. Consider treating severely burned humans by cooling their body in an air or water bath at 15 °C for 12-20 hours. An estimate of the heat transfer rate from the patient to such a bath is q,-125 kcal/(m2 hr) with a skin temperature of 25 °C, while the normal rate is q,-50 kcal/(m hr) when the skin temperature is 34 °C. Since more heat will be lost to the surroundings than under normal conditions, there will need to be...
(33%) Problem 3: Warm blooded animals are homeothermic that is, they maintain an approximately constant body temperature. (For humans it's about 37°C.) When they are in an environment that is below their optimum temperature, they use energy derived from chemical reactions within their bodies to warm them up. One of the ways that animals lose energy to their environment is through radiation. Every object emits electromagnetic radiation that depends on its temperature. For very hot objects like the sun, that...
Following vigorous exercise, the body temperature of a 60.0 kg person is 39.9°C . At what rate in watts must the person transfer thermal energy to reduce the the body temperature to 37.0°C in 28.0 min, assuming the body continues to produce energy at the rate of 150 W? (1 watt = 1 joule/second or 1 W = 1 J/s). W
Following vigorous exercise, the body temperature of an 85.0 kg person is 40.1°C . At what rate in watts must the person transfer thermal energy to reduce the the body temperature to 37.0°C in 22.0 min, assuming the body continues to produce energy at the rate of 150 W? (1 watt = 1 joule/second or 1 W = 1 J/s).
The heat that is conducted through a body must frequently be removed by other heat transfer processes. For example, the heat generated in an electronic device must be dissipated to the surroundings through convection by means of fins. Consider the one-dimensional aluminum fin (thickness t = 3.0 mm, width Z = 20 cm, length L) shown in Figure 1, that is exposed to a surrounding fluid at a temperature T. The conductivity of the aluminum fin (k) and coefficient of...