A calorimeter of mass 100 g contains `100 cm^(3)` of water at `70^(@)C.` It cools down to `30^(@)C` in 12 minutes. When the same volume of glycerine is used in the same calorimeter, it takes 8 minutes to cool down through the same temperature range. Find the specific heat of glycerine of specific heat of the calorimeter is `0.1 calg^(-1)^(@)C^(-1)` and specific gravity of glycerine `=1.27.`

Answer

`[0.498 cal g^(-1)^(@)C^(-1)`]