Two objects, A and B, initially at 200 Kand 400 K, respectively, are brought into contact with each other. Over this range of temperatures the heat capacity of object A and objectB can be approximated by the following equations:CA = 2 +0.05T and CB = 4 +0.02TThrough the exchange of heat the two objects eventually obtain a common final temperature. How much heat (in J) was exchanged during the process of obtaining the finaltemperature?100

Answered: Image /qna-images/answer/ce888ebc-064a-499d-ba7e-0ac1ddc9f9a7.jpg

Two objects, A and B, initially at 200 K and 400 K, respectively, are brought into contact with each other. Over this range of temperatures the heat capacity of object A and object B can be approximated by the following equations: CA = 27 + 0.05T and CB = 4 + 0.02T Through the exchange of heat the two objects eventually obtain a common final temperature. How much heat (in J) was exchanged during the process of obtaining the final temperature? 100

Two objects, A and B, initially at 200 K and 400 K, respectively, are brought into contact with each other. Over this range of temperatures the heat capacity of object A and object B can be approximated by the following equations: CA = 27 + 0.05T and CB = 4 + 0.02T Through the exchange of heat the two objects eventually obtain a common final temperature. How much heat (in J) was exchanged during the process of obtaining the final temperature? 100

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

The amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 210 J/s. The energy is transferred a distance of 1.7 x 10-3 m through a body whose surface area is 1.6 m². Assuming that the thermal conductivity is that of body fat, determine the temperature difference between the capillaries and the surface of the skin. Number i Units
A chocolate bar has 225Cal. Charlie is locked in a deserted chocolate factory and needs to heat 2.00L of water for his dinner. He plans on burning chocolate bars to accomplish this. a) How many kJ of energy are needed to heat the water from 25.0C to 100.0C? __ kJ b) What fraction of a chocolate bar would be needed to heat the water? __% Answer all parts A and B.
Equal masses of substance A at 98.1°C and substance B at 26.2°C are placed in a well-insulated container of negligible mass and allowed to come to equilibrium. If the equilibrium temperature is 77.4°C, which substance has the larger specific heat? a) substance A b) The answer depends on the exact initial temperatures. c) More information is required. d) The specific heats are identical.
A 1,240 kg car going 30 m/s is brought to a stop using its brakes. Let's assume that a total of approximately 30 kg of iron in the brakes and wheels absorbs the heat produced by the friction. (a) What was the car's original kinetic energy (in J)? J (b) After the car has stopped, what is the change in temperature (in °C) of the brakes and wheels? °C
Objects A and B in the figure are made from copper, but the mass of object B is three times that of object A. Object C is made from glass and has the same mass as object B. The same amount of heat Q is supplied to each one: Q = 13.4 J. Determine the rise in temperature of (a) block A, (b) block B, and (c) block C. Assume specific heat capacities c = 387 J/(kg-C°) for copper and c₂ = 840 J/(kg-Co) for glass. Copper B Glass C A mA =1.60g mB 4.80g mc4.80g
Rubbing your hands together warms them by converting work into thermal energy. a. If a woman rubs her hands a total of 19 times (forward and backwards count separately), at a distance of 7.75 cm per rub, and with an average frictional force of 39 N, what is the temperature increase of her hands, in degrees Celsius? The mass of tissues warmed is only 0.100 kg, mostly in the palms and fingers, and the heat capacity of her hands is 3500 J/(kg⋅°C).
At the microscopic level heat conduction is a chain of collisions by particles of different kinetic energies. Suppose a heat interaction occurs between a hot object of 80 °C and a cool object of 10 °C, and the primary energy transfer mechanism is heat conduction. If the interaction continues long enough, how will the average kinetic energy of the particles in the (initially) hot object compare to the average kinetic energy of the particles in the (initially) cool object? a. The average KE of the hot object particles will be greater than the average KE of the cool object particles. b. The average KE of the hot object particles will be the same as the average KE of the cool object particles. c. There is no way to determine the correct answer.