A calorimeter of negligible heat capacity contains 100cc of water at 40 degrees celsius.The water cools to 35 degrees celsius in 5 minutes.The water is now replaced by K-oil of equal volume at 40 degrees celsius .Find the time taken for the temperature to become 35 degree celsius under similar conditions.Specific heat capacities of water and K-oil are 4200 J/Kg-k and 2100 J/kg-k respectively. density of k-oil is 800 kg/m^3.

jyothi

12 Years agoGrade 11