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Question
A 85.9-g piece of cobalt (s=0.421J/(g·ºC)), initially at 263.1ºC, is added to 116.2g of a liquid, initially at 24.7ºC, in an insulated container. The final temperature of the metal-liquid mixture at equilibrium is 50.8ºC. What is the identity of the liquid? Neglect the heat capacity of the container.
A) hexane (s= 2.27 J/(g·ºC))
B) methanol (s= 2.53 J/(g·ºC))
C) acetone (s= 2.15 J/(g·ºC))
D) ethanol (s= 2.43 J/(g·ºC))
E) water (s= 4.18 J/(g·ºC))
Answer
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