Write an Activity To show Thermal conductivity of milk.
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Answers
Answer:
The Thermtest THW-L2 is a thermal conductivity meter based on the Transient Hot Wire method for testing the thermal conductivity of fluids. In this example milk is used to demonstrate the sensitivity of the device.
Testing fluids with a THW-L2 is easy and fast. Each measurement is only ca 1 second long and the sensor wire is gently heated with ca 3 °C during each experiment. However, it is important to allow the sample to reach thermal equilibrium between tests, and it is therefore suggested to wait a few minutes between tests and allow temperature to fully stabilize if testing is performed at several temperatures. In this example, the measurements on each samples were repeated four times at the specified temperature to demonstrate measurement precision.