When a thermocouple has one junction in melting ice and the other junction in boiling water it produces an e.m.f. of 63 μV.
a. What e.m.f. would be produced if the second junction was also placed in melting ice?
b. When the second junction is placed in a cup of coffee, the e.m.f. produced is 49 μV. Calculate the temperature of the coffee.
c. The second junction is now placed in a beaker of melting lead at 327 °C.
i. Calculate the e.m.f. that would be produced.
ii. State the assumption that you make.