Re: pinhole specific heat of styrofoam

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From: NFetter@aol.com
Date: Fri Feb 25 2000 - 20:46:19 PST 

From: NFetter@aol.com
Message-ID: <11.1652b2a.25e8b49b@aol.com>
Date: Fri, 25 Feb 2000 23:46:19 EST
Subject: Re: pinhole specific heat of styrofoam

HI Jeff,
I have used styrofoam cups for calorimetry experiments for many years and I
have concluded that the heat energy absorbed by the cups is negligible and
certainly within the experimental error of the activity. For example, I have
used them to measure the enthalpy of formation of ammonium salts and the
students' results consistently fall within + or - 5% of the literature values.
Neil Fetter

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