a body at a temperature of 50°F is placed in an oven whose temperature is kept at 150°F. If after 10 minutes the temperature of body is 75°F, find the time required for the body to reach 100°F. (step by step solution)

a body at a temperature of 50°F is placed in an oven whose temperature is kept at 150°F. If after 10 minutes the temperature of body is 75°F, find the time required for the body to reach 100°F. (step by step solution)

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter16: Temperature And The Kinetic Theory Of Gases

Section: Chapter Questions

Problem 5OQ

See similar textbooks

Similar questions

A mass of ice at -4°C is needed to cool 115 kg of vegetables in a bunker for 24 hours. The initial temperature of the vegetables is assumed to be 29°C. It is also assumed that, within the 24-hr period, the average temperature inside the bunker is 7°C. If the heat gained per hour in the bunker is 30% of the heat removed to cool the vegetables from 29°C to 7°C, what would be the required mass of ice in kg? Use: Specific heat of water 4.2292 kJ/kg-°C Specific heat of ice 1.9387 kJ/kg °C Specific heat of vegetables 3.35 kJ/kg-°C
Luis and Salman are trying to increase the temperature of a substance by heating it. . What is the quantity of heat in kilojoules required to raise the temperature of 1.2 kg of the substance from3°C to 110 °C at a pressure of 1.0 atm? Please keep three significant figures. Useful information: Melting point = 293 K heat of fusion = 3.90 x 104 J/kg. boiling point is 423 K heat of vaporization 7.80 x 104 J/kg (at a pressure of 1.0 atm). The specific heats for the solid phase is 600 J/(kg K) The specific heats for the liquid phase is 1000 J/(kg K) The specific heats for the gaseous phase is 400 J/(kg K)
If the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C?. Hint: To get the ΔT (Change in temperature), get the difference between final temperature (Tf) and initial temperature (Ti). [ΔT = Tf – Ti ]
The amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 260 J/s. The energy is transferred a distance of 1.5 x 103 m through a body whose surface area is 1.4 m². Assuming that the thermal conductivity is that of body fat, determine the temperature difference between the capillaries and the surface of the skin.
500 g of Ice at 0 °C is kept in an insulated cubic box. The length of the box is 30 cm and the thickness of the wall is 0.5 cm. The thermal conductivity of the wall is 0.04 W/mK. If the environment temperature outside the box is 25 °C, Determine (a) the rate of heat loss due to the heat conduction.
When 345 g of water at 35.0 °C and 295 g of water at 63.0 °C are added together in a calorimeter, the temperature of the mixture becomes 46.9 °C. If the specific heat capacity of water is 4.18 J/g °C, how many kilojoules of energy are absorbed by the calorimeter?
You drop an ice cube into an insulated bottle full of water and wait for the ice cube to completely melt. The ice cube initially has a mass of 70.0 g and a temperature of 0°C. The water (before the ice cube is added) has a mass of 880 g and an initial temperature of 20.0°C. What is the final temperature (in °C) of the mixture? (Assume no energy is lost to the walls of the bottle, or to the environment.) ?°C
A dead body is discovered at 3:45pm in a room where the temperature is 20°C. At that time the temperature of the body is 27°C. Two hours later, at 5:45pm, the temperature of the body is 25.3°C. Note that the normal (adult human) body temperature is 37°C. -Calculate the proportionality constant, k. Type only the letter of the correct answer. Here are the choices: A. 0.1391 B. 0.2788 C. 0.7571 D. 1.1319 -What is the approximate Time of Death?. Type only the letter of the correct answer. Here are the choices: A. 6:38 AM B. 8:42 AM C. 9:22 AM D. 12:15 PM
How much energy is required to change a 31 g ice cube from ice at -11 °C to steam at 112°C? The specific heat of ice is 2090 J/kg °C, the specific heat of water is 4186 J/kg °C and the specific heat of steam is 2010 J/kg °C. The heat of fusion of water is 333000 J/kg and the heat of vaporization is 2.26 × 106 J/kg. Answer in units of J.
A 900 g copper rod at 20 degrees celcius has a length of 1.0000 m. The thermal expansion coefficient of copper is 17 x 10^-6 degrees celcius -1. The specific heat capacity is 0.385 kJ/kg degrees celcius. Question A: The copper is heated to 400 degrees celcius. What is the new length? Give the answer in meters and with 4 digits of precision after the decimal. Question B: The hot copper is then quenched by dunking the entire rod in a bucket with 10 kg of water at 20 degrees celcius. The specific heat capaciy of water is 4.18 kJ/kg degrees celcius. If none of the water turns to steam what is the equilibrium temp of the copper rod and water? Please give the answer in degrees celcius Question C: You measure the equilbrium temp and find that it is 24 degrees celcius. If the latent heat of vaporization of water is 2,260 kJ/kg, what mass of water turned to steam? Answer in grams
Luis and Salman are trying to increase the temperature of a substance by heating it.. What is the quantity of heat in kilojoules required to raise the temperature of 3.2 kg of the substance from1° C to 115 °C at a pressure of 1.0 atm? Please keep three significant figures. Useful information: Melting point = 293 K heat of fusion =3.90 x 104 J/kg. boiling point is 423 K heat of vaporization 7.80 x 104 J/kg (at a pressure of 1.0 atm). The specific heats for the solid phase is 600 J/(kg K) The specific heats for the liquid phase is 1000 J/(kg K) The specific heats for the gaseous phase is 400 J/(kg K) 339.2 20 F3 4 900 F4 % 5 F5 A 6 tv Ni MacBook Air F6 7 F7 * F8 A 9
A closed box is filled with dry ice at a temperature of -86.0 °C, while the outside temperature is 21.0 °C. The box is cubical, measuring 0.394 m on a side, and the thickness of the walls is 4.49 × 102 m. In one day, 3.76 × 106 J of heat is conducted through the six walls. Find the thermal conductivity of the material from which the box is made. Number Units