A1.
A thermocouple, which is initially at 20°C, is inserted in a stream of hot gas at T. After 3 seconds
the thermocouple reads 80°C while after 6 seconds it reads 110°C. Assuming applicability of the
lumped thermal capacity model, estimate the temperature of the hot gas. What would be the
temperature of the thermocouple after 10 seconds in the hot gas stream?
Please note that, $a \ln x = \ln x^a$
