A line was measured with a 50-m tape which was found to be 532.28 m. the tape is known to be of standard length at 20o C with coefficient of thermal expansion of 0.0000116 m/o C. If the corrected length of the measured line is 532.37 m. long, at what temperature was the measurement made?

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Temperature Difference and Heat Transfer

Whenever there is a flow of heat flux resulting from a temperature gradient within the material or between two materials, there is heat transfer. Heat transfer primarily arises due to temperature differences between two bodies or within bodies. The term temperature gradient denotes temperature differences or variation of temperature due to change in some quantity. The fundamental use of the concept of temperature is found in the zeroth law of thermodynamics.