A thermally insulated, closed copper vessel contains water at 15^@C. When the vessel is shaken vigorously for 15 minuts, the temperature rises to 17^@C. The mass of the vessel is 100 g and that of the water is 200 g. The specific heat capacities of copper and water are 420(J)/(kg-K) and 4200(J)/(kg-K) resprectively. Neglect any thermal expansion.
(a) How much heat is transferred to the liquid vessel system?
(b) How much work has been doen on this system?
(c ) How much is the increase in internal energy of the system?
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