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To measure specific heat, the student flows air with a velocity of 20 m/s and a temperature of 25C perpendicular to the length of the tube, as illustrated below. In this time she heats the tube electrically,
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To measure specific heat, the student flows air with a velocity of 20 m/s and a temperature of 25C perpendicular to the length of the tube, as illustrated below. In this time she heats the tube electrically, passing a current of 50 mA through the tube wall. The initial temperature of the tube is 25 C. After 10 min of heating, a thermocouple buried inside the tube wall measures a temperature of 31.2 C. The tube core is sealed and the heat lost from the internal surface of the tube is negligible during measurements. Furthermore, the tube is suspended on two thermally insulating supports. What is the specific heat of the tube?

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To measure specific heat, the student flows air with a velocity of 20 m/s and a temperature-example-1
User Jason L
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