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  • A copper ball of mass 100 gm is at a temperature T.  It is dropped in a copper calorimeter of mass 100 gm, filled with 170 gm of water at room temperature. Subsequently, the temperature of the system is found to be 750C.  T is give

A copper ball of mass 100 gm is at a temperature T.  It is dropped in a copper calorimeter of mass 100 gm, filled with 170 gm of water at room temperature. Subsequently, the temperature of the system is found to be 750C.  T is given by : (Given : room temperature=300C, specific heat of copper=0.1 cal/gm0C)    
Option: 1 8000C
Option: 2  8850C  
Option: 3 12500C
Option: 4  8250C
 

Answers (1)

best_answer

As we have learnt

As we know Heat given  = Heat Taken

\\*\Rightarrow 100\times 0.1\times (T-75) = (100\times 0.1\times 45) + (170\times 1\times 45) \\* 10 (T - 75) = 8100 \\* T-75 = 810 \Rightarrow T = 885\degree C

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vishal kumar

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