Well one possible problem is that a glass capillary tube may be too small to measure a temperature that high. The absolutely certain reason, however, is that at 110 degrees Celsius, the syrup would boil and the thermometer wouldn't be able to register the temperature of the gas. Hope this helps!
Hassan's simple thermometer cannot measure the temperature of hot sugar syrup at 110 degrees Celsius because the water inside it would start to boil, leading to inaccurate readings. Additionally, the glass tube may not withstand such high temperatures. Using a thermometer specifically designed for high temperatures is necessary for accurate measurements.
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