Answer to Question #286851 in Physical Chemistry for Ruru

Question #286851

100g of an unknown metal at 150°C was dropped into a bucket containing 50g of water initially at 21°C.The final temperature of the mixture was 32°C.What is the specific heat capacity of the unknown metal?

1
Expert's answer
2022-01-13T06:40:01-0500

Taking specific heat capacity of water as "4200J\/(Kg.K)"


Let c"=" specific heat capacity of the metal


Heat lost by metal":"

"=\\frac{100}{1000}\u00d7c\u00d7(150-32)"

"=11.8cJ"


Heat gained by water

"=\\frac{50}{1000}\u00d74200\u00d7(32-21)"

"=2310J"


"11.8c=2310"

"c=195.76J\/(Kg.K)"


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