A 100 g glass container contains 250 g of water at 15.0 C.A 100 g piece of unknown material at 100 C is added to the water in the container.The final temperature of the mixture is 19.0 C.What is the specific heat of the unknown material in J/kg C? (specific heat of water = 4186 J/kg C, specific heat of glass = 837.2 J/kg C)
A) 245
B) 387
C) 412
D) 558
E) 674
Correct Answer:
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