The temperature of a hot fluid is measured with a copper-constantan thermocouple, but by mistake, this is connected to chromel-constantan extension wires (such that the two constantan wires are...

The temperature of a hot fluid is measured with a copper-constantan thermocouple,

but by mistake, this is connected to chromel-constantan extension wires (such that

the two constantan wires are connected and the chromel extension wire is connected

to the copper thermocouple wire. If the actual fluid temperature was 200C, the

junction between the thermocouple and extension wires was at 50C, and the reference junction was at 0C, calculate the emf measured at the open ends of the extension wires. What fluid temperature would be deduced from this measured emf

(assuming that the error of using the wrong extension wires was not known)?