Answer to Question #168835 in General Chemistry for Josh Nater

Question #168835

A 5.37gram piece of metal has a temperature of 22.0°C. If the metal piece loses 31.5 joules of energy as it cools to 15.5°C, what is the metal substance?




1
Expert's answer
2021-03-04T06:43:47-0500

Heat capacity of metal

= - 31.5 J/5.37 g/(15.5 - 22.0)℃

= 0.902 J/(g℃).

It approximately close to the heat capacity of aluminium. So the metal is aluminium (Al).


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