In a particular industrial situation, a chromel-alumel thermocouple with chromelalumel extension wires is used to measure the temperature of a fluid. In connecting
this measurement system, the instrumentation engineer responsible has inadvertently
interchanged the extension wires from the thermocouple (such that the chromel thermocouple wire is connected to the alumel extension lead wire, etc.). The open ends
of the extension leads are held at a reference temperature of 0C and are connected
to a voltmeter that measures an emf of 18.75 mV. If the junction between the thermocouple and extension wires is at a temperature of 38C,
(a) What temperature of fluid is indicated?
(b) What is the true fluid temperature?
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