The table below shows the specific heats of several metals. The temperature of a 15-g sample of an unknown metal increases from 20.0 C to 30.0 C when it absorbs 67.5 J of heat. Which of the metals in the table below could be the unknown metal?

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Answer 1 · 2017-05-30T22:51:37

It could be Iron.

the heat #Q# absorbed by the metal is:

#Q=mcDeltaT#

or in numbers:

#67.5=15*c*(30-20)#

#c=67.5/(15*10)=0.45J/(gK)#

The difference of temperature in Celsius is the same as in Kelvin.