When the alcohol thermometer is placed in 20∘c water, what temperature will the thermometer record?
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Answered on
An alcohol thermometer records the temperature based on the expansion and contraction of the alcohol (usually ethanol) inside the thermometer. The scale is calibrated to show the temperature of the substance it is measuring.
If you place an alcohol thermometer in 20°C water, it should ideally record a temperature of 20°C. The alcohol expands or contracts in response to the temperature of its surroundings, and the calibrated scale on the thermometer provides a reading corresponding to that temperature.