Homework Help: AP Physics

Posted by Sasami on Wednesday, December 2, 2009 at 11:59pm.

A student found an unknown substance. In an effort to identify the thermal properties of the substance, she isolated a specimen of 47 gram, and applied 290 J of heat energy to the specimen. If she measured the temperature of the specimen changed from 20 ° C to 25.7 ° C, what is the specific heat of the unknown substance?

How exactly do I do that?

AP Physics - drwls, Thursday, December 3, 2009 at 12:15am
Specific heat =

=(heat added)/[temperature change)*mass)]

= 290 J/[5.7 C *47 g] = 1.082 J/(C g)
AP Physics - Sasami, Thursday, December 3, 2009 at 12:18am
Thank you DR. Wls your a life saver.

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