lab22 - LAB #22 SPECIFIC HEAT BY A METHOD OF MIXTURES...

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LAB #22 SPECIFIC HEAT BY A METHOD OF MIXTURES INTRODUCTION: Placing a hot metal into a cup of cool water will cause the metal to cool and the water to increase in temperature. A final uniform temperature will be reached. Knowing the masses involved, the specific heat of water, and the temperatures involved will allow one to calculate the specific heat (C x ) of the metal. For a perfectly insulated system, Δ Q = 0 and C x becomes: C x = ( M 1 C w + C )( T f ! T 4 ) M 2 ( T 3 ! T f ) (1) where C w is the specific heat of water and C is the effective heat capacity of the calorimeter cup, stirrer, thermometer combination, and must be determined for your calorimeter, as described in the PROCEDURE, step 2. We will verify this relation and measure the heat capacities of metal blocks. APPARATUS : Pasco™ Calorimeter, 2 hole cork, steam generator, Copper Cup, Platform balance,Test metal, Ice, stirrer. (See Fig. 1) Computer, ULI,Temperature probes (# on Temp probe must match the # on the ULI), and
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lab22 - LAB #22 SPECIFIC HEAT BY A METHOD OF MIXTURES...

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