Consider an alcohol and a mercury thermometer that read exactly 0°c at the ice point and 100°c at the steam point. the distance between the two points is divided into 100 equal parts in both thermometers. do you think these thermometers will give exactly the same reading at a temperature of, say, 60°c? explain
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Answered by
31
The two thermometers will have different readings at the same temperature.
Reason:
The operation of these two thermometers is based on the thermal expansion of a fluid.
Both mercury and alcohol have different thermal expansion.
If both fluids have a thermal expansion coefficients that vary linearly with temperature then they will always show the same reading.
Otherwise the readings will deviate.
The expansion of liquids is not linear and there is no way the expansion curves of two substances will be equal.
Therefore the temperature reading on a mercury thermometer will differ from the reading on the alcohol thermometer although the difference is usually small.
Answered by
5
Answer:
Reason:
The operation of these two thermometers is based on the thermal expansion of a fluid.
Both mercury and alcohol have different thermal expansion.
If both fluids have a thermal expansion coefficients that vary linearly with temperature then they will always show the same reading.
Otherwise the readings will deviate.
The expansion of liquids is not linear and there is no way the expansion curves of two substances will be equal.
Therefore the temperature reading on a mercury thermometer will differ from the reading on the alcohol thermometer although the difference is usually small.
Explanation:
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