The graph below shows the variation with temperature of the volume of a fixed mass of water. A thermometer is to be designed that measures temperatures in the range between 274 K and 280 K . Which one

Question

The graph below shows the variation with temperature of the volume of a fixed mass of water. A thermometer is to be designed that measures temperatures in the range between $274 K$ and $280 K$ . Which one of the following is the main reason why the variation with temperature of the volume of the water is not suitable for use in the thermometer?

Source Q48 diagram

TestHub · Accepted Answer

The volume-temperature graph is not one-to-one. The same volume corresponds to temperatures on both sides of the minimum. A volume reading therefore cannot identify temperature uniquely.

Physics - Heat & Thermo Question with Solution | TestHub

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