University Physics (14th Edition)
14th Edition
ISBN: 9780133969290
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
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Textbook Question
Chapter 17, Problem Q17.1DQ
Explain why it would not make sense to use a full-size glass thermometer to measure the temperature of a thimbleful of hot water.
Expert Solution & Answer
To determine
The reason behind the fact that a full size of a glass thermometer can not be used to measure the temperature of a thimbleful of hot water.
Explanation of Solution
A glass thermometer has a bulb that carries mercury and this bulb is connected to a glass tube which has a very small diameter.
Heat in a thimbleful of water is small as compared to the heat that is required to heat the mercury.
In a glass thermometer mercury is used and the temperature that is attained from thimbleful of hot water is not sufficient to enlarge the mercury. Thus a glass thermometer cannot be used to ascertain the temperature of a thimbleful of hot water.
Conclusion:
The full size of a glass thermometer cannot be used to measure the temperature of a thimbleful of hot water.
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Students have asked these similar questions
Explain why it would not make sense to use a full-size glassthermometer to measure the temperature of a thimbleful of hot water.
*38. GO At the bottom of an old mercury-in-glass thermometer is a
45-mm reservoir filled with mercury. When the thermometer was placed
under your tongue, the warmed mercury would expand into a very narrow
cylindrical channel, called a capillary, whose radius was 1.7 × 10-² mm.
Marks were placed along the capillary that indicated the temperature.
Ignore the thermal expansion of the glass and determine how far (in mm)
the mercury would expand into the capillary when the temperature
changed by 1.0 C°.
At the bottom of an old mercury-in-glass thermometer is a 39-mm reservoir filled with mercury. When the thermometer was placed under your tongue, the warmed mercury would expand into a very narrow cylindrical channel, called a capillary, whose radius was 1.8 x 102 mm. Marks were placed along the capillary that indicated the temperature. Ignore the thermal
expansion of the glass and determine how far (in mm) the mercury would expand into the capillary when the temperature changed by 1.0 C°.
AL =
the tolerance is +/-2%
Chapter 17 Solutions
University Physics (14th Edition)
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