An insulated jar containing 200 g of solid candle wax is placed on a hot plate that supplies heat energy to the wax at the rate of 220 J/s. The wax temperature is measured every 30 s, yielding the following data: Time (s) Temperature C) 0 20.0 30 31.7 60 42.2 90 55.0 120 64.7 150 70.4 180 70.5 210 70.5 240 70.6 270 70.5 Table 1: Problem 2 data. 300 330 70.4 74.5 What are the specific heat of the solid wax, the melting point, and the wax's heat of fusion? You may need a linear regression, which you may do in a spreadsheet or programming language of your choice.
An insulated jar containing 200 g of solid candle wax is placed on a hot plate that supplies heat energy to the wax at the rate of 220 J/s. The wax temperature is measured every 30 s, yielding the following data: Time (s) Temperature C) 0 20.0 30 31.7 60 42.2 90 55.0 120 64.7 150 70.4 180 70.5 210 70.5 240 70.6 270 70.5 Table 1: Problem 2 data. 300 330 70.4 74.5 What are the specific heat of the solid wax, the melting point, and the wax's heat of fusion? You may need a linear regression, which you may do in a spreadsheet or programming language of your choice.
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section: Chapter Questions
Problem 117SCQ: You have the six pieces of metal listed below, plus a beaker of water containing 3.00 102 g of...
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Transcribed Image Text:An insulated jar containing 200 g of solid candle wax is placed on a hot plate that supplies heat energy to the
wax at the rate of 220 J/s. The wax temperature is measured every 30 s, yielding the following data:
Time (s) Temperature
C)
0
20.0
30
31.7
60
42.2
90
55.0
120
64.7
150
70.4
180
70.5
210
70.5
240
70.6
270
70.5
Table 1: Problem 2 data.
300
330
70.4
74.5
What are the specific heat of the solid wax, the melting point, and the wax's heat of fusion? You may need a
linear regression, which you may do in a spreadsheet or programming language of your choice.
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