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Chapter 16: Problem 2

Does a thermometer measure its own temperature or the temperature of its surroundings? Explain.

Short Answer

Expert verified
A thermometer technically measures its own temperature, which is a reflection of the temperature of its surroundings or the object it is in contact with due to heat transfer and the achievement of thermal equilibrium.

Step by step solution

01

Understanding the Thermometer Principle

A thermometer measures temperatures because of the principle of heat transfer. When a thermometer is brought into contact with a body or an environment, heat transfer takes effect and continues until the thermometer and the body achieve thermal equilibrium.
02

Does Thermometer Measure its own temperature?

It's important to consider that when a thermometer is reading a temperature, it is essentially measuring its own equilibrium temperature. However, this equilibrium temperature is the result of the heat transferred from the body or environment it is in contact with. In that sense, while a thermometer is technically measuring its own temperature, it is reflecting the temperature of the object or surroundings it is in contact with.
03

Summarizing the Explanation

So, to answer the exercise question, one can say that a thermometer does measure its own temperature, but this measurement reflects the temperature of its surroundings or the object it is in contact with since it achieves thermal equilibrium with that.

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Most popular questions from this chapter

An oven loses energy at the rate of \(14 \mathrm{W}\) per \(^{\circ} \mathrm{C}\) temperature difference between its interior and the \(20^{\circ} \mathrm{C}\) temperature of the kitchen. What average power must be supplied to maintain the oven at \(180^{\circ} \mathrm{C} ?\)

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