Q: One end of a copper rod of uniform cross section and length 1.5 m is kept in contact with ice and the other end with water at 100°C. At what point along its length should a temperature of 200°C be maintained so that in the steady state, the mass of ice melting be equal to that of the steam produced in same interval of time. Assume that the whole system is insulated from surroundings: [Lice = 80 cal/g, Lsteam = 540 cal/g]
(a) 10.34 cm from the end at 100°C
(b) 10.34 mm from the end at 100°C
(c) 1.034 cm from the end at 100°C
(d) 1.034 m from the end at 100°C
Ans: (a)