Ice at -20°C is filled upto height h=10 cm in a uniform cylindrical vessel. Water at temperature x°C is filled in another identical vessel upto the same height h =10 cm. Now, water from second vessel is poured into first vessel and it is found that level of upper surface falls through ∆h= 0.5 cm when thermal equilibrium is reached. Neglecting thermal capacity of vessels, change in density of water due to change in temperature and loss of heat due to rediation, calculate initial temperature x of water.

Sahil Bhardwaj , 5 Years ago

Grade 12th pass