In a particular industrial situation, a nicrosil-nisil thermocouple with nicrosil-nisil
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 nicrosil thermocouple wire is connected to the nisil 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 17.51 mV. If the junction between the thermocouple and extension wires is at a temperature of 140C,
(a) What temperature of fluid is indicated?
(b) What is the true fluid temperature?
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