A metal of mass 200g at a temperature of 100^oC is placed in 100g of water at 25^oC in a container of negligible heat capacity. If the final steady temperature is 30^oC, calculate the specific heat capacity of the metal. [specific heat capacity of the water is 4200 Jkg^-1 K^-1]

• A.150 Jkg^-1K^-1
• B.300 Jkg^-1K^-1
• C.320 Jkg^-1K^-1
• D.1960 Jkg^-1K^-1