A Cu calorimeter, of mass 250 g, contains 1 litre of water, with an initial temperature of 20 °C. A sample of mass 500 g, at a temperature of 500

°C is dropped into the colorimeter. The final temperature of the calorimeter and the water was 40 °C, What is the specific heat capacity of the sample? The specific heat capacity of water is4190 J kg-1K1, and of Cu is 380 Jkg-K-1. the sample is a mixture of molybdenum and nickel, what is the weight percentage of each metal? The specific heat capacity of Mo is 272 J.kg1K1, and of Ni is 461 Jkg1K1.