Chemistry 10th Edition

Published by Brooks/Cole Publishing Co.
ISBN 10: 1133610668
ISBN 13: 978-1-13361-066-3

Chapter 1 - The Foundations of Chemistry - Exercises - Conceptual Exercises - Page 42: 97

Answer

The Range of Temperature on the surface of the Sun is $5500 ^{\circ}C to 6000^{\circ} C$. Now, we have to convert $5500 ^{\circ}$C to Kelvins and $^{\circ} F$. a) Converting to Kelvins: K = $[ 5500^{\circ} C + 273.15 ^{\circ}] \times (1.0 K/1.0^{\circ}C)$ = 5773.15 K =$\approx$ 5773 K b) Converting to $^{\circ} F$: = [ $5500^{\circ}C \times (1.8^{\circ} F/1.0^{\circ}C)] + 32 ^{\circ} F$ = $9932^{\circ} F$ c) The famous astronomer in public lecture told that the temperature of the surface of sun is $10,000^{\circ}$. Here, she is referring to the Fahrenheit temperature Scale.

Work Step by Step

The Range of Temperature on the surface of the Sun is $5500 ^{\circ}C to 6000^{\circ} C$. Now, we have to convert $5500 ^{\circ}$C to Kelvins and $^{\circ} F$. The formulas for these conversions are as follows: K = $x^{\circ}C + 273.15 ^{\circ}$ & $ ^{\circ} F = [ x^{\circ}C \times (1.8^{\circ} F/1.0^{\circ}C)] + 32 ^{\circ} F$ a) Converting to Kelvins: K = $x^{\circ}C + 273.15 ^{\circ}$ K = $[ 5500^{\circ} C + 273.15 ^{\circ}] \times (1.0 K/1.0^{\circ}C)$ = 5773.15 K b) Converting to $^{\circ} F: ?^{\circ} F$ = [$x^{\circ}C \times (1.8^{\circ} F/1.0^{\circ}C)] + 32 ^{\circ} F$ = [ $5500^{\circ}C \times (1.8^{\circ} F/1.0^{\circ}C)] + 32 ^{\circ} F = 9900^{\circ} F + 32^{\circ} F$ = $9932^{\circ} F$ c) The famous astronomer in public lecture told that the temperature of the surface of sun is $10,000^{\circ}$. Here she is referring to the Fahrenheit temperature Scale.
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