A 100 g copper bowl contains 200 g of water, both at 25°C. A 300 g aluminium cylinder is dropped into the water, causing

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A 100 G Copper Bowl Contains 200 G Of Water Both At 25 C A 300 G Aluminium Cylinder Is Dropped Into The Water Causing 1 (31.68 KiB) Viewed 19 times

A 100 g copper bowl contains 200 g of water, both at 25°C. A 300 g aluminium cylinder is dropped into the water, causing the water to boil with 40 g being converted to steam. The final temperature of the system is 100°C. Neglect energy transfers with the environment. Given the specific heats of copper, water, and aluminium are 386 J/kg-K, 4190 J/kg-K, and 900 J/kg-K respectively. Given also the heat of fusion and heat of vaporisation of water are 333 kJ/kg and 2260 kJ/kg respectively. (a) Calculate the original temperature of the cylinder. (b) Calculate the entropy change in the bowl-water-cylinder system.