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: Table 1: Problem 2 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 70.5 300 330 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: Table 1: Problem 2 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 70.5 300 330 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.

Living By Chemistry: First Edition Textbook

1st Edition

ISBN:9781559539418

Author:Angelica Stacy

Publisher:Angelica Stacy

ChapterU5: Fire: Energy , Thermodynamics, And Oxidation-reduction

SectionU5.3: Point Of View: First And Second Laws

Problem 1TAI

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