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kriegera
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Homework Statement
A mass of 200 grams of copper, whose specific heat is 0.095, is heated to 100° C, and placed in 100 grams of alcohol at 8° C contained in a copper calorimeter, whose mass is 25 grams, and the temperature rises 28.5°C. Find the specific heat of the alcohol.
Homework Equations
ΔH=cmΔT
C=H/mΔT
The Attempt at a Solution
The heat of placing the copper into the calorimeter is the energy used to warm the alcohol via conduction. We first have to decide how much heat it takes to raise the temp of the alcohol from 8° to 28.5°.
Use equation:
ΔH=cmΔT = (0.095)(200g)(100-0)
Since no beginning heat is given, we will assume the copper was heated from 0°C.
= 1,900 J
Knowing the force of heat energy that heats the alcohol, we can then rearrange the equation to find the specific heat of alcohol:
C=H/mΔT = 1,900/(100g)(28.5-8) = 0.93 J/g.K
Am i on track here?