Answered: A 689.00g block of gold ( cgold=129 J…

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)...

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Question

A 689.00g block of gold (

c_gold=129

kg°C

) initially at

15.00°C

is placed in thermal contact with an unknown mass of aluminum (

c_alum=900

kg°C

) initially at

90.00°C

. If they equilibrate at a final temperature of

68.00°C

, what is the mass of the aluminum?

What assumption do we make when solving calorimetry problems like this?

We can only have two substances in thermal contact. The substances are in a closed, isolated container that does not allow any energy to enter or leave the system. The two substances must have different specific heats. Some of the energy transferred from one substance is lost to its surroundings and does not go to the other substance.

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