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A 200 g block of copper at a temperature of 75°C is dropped into 650 g...

A 200 g block of copper at a temperature of 75°C is dropped into 650 g of water at 35°C. The water is contained in a 400 g glass container. What is the final temperature of the mixture?

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Answer #1

Heat loss by the copper will be gained by the glass-water system since the system is assumed to be isolated. Thus if T is the final temperature of the system,we'll have

  

where mc= mass of copper=200g

cc= specific heat of copper,

Tc= Initial temperature of the copper

mw= mass of water= 650g

cw= specific heat of water,

mg= mass of glass container= 400g

cg= specific heat of glass,

Then using all above and given values in above equation,

  

  

  

  

  

  (ANS)

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