Silver, being one of the best conductors of electricity, is used in the electrical wiring for high-end stereo equipment. What would the temperature be of a 0.325 kg silver conductor that has been carrying a current for two hours? The specific heat of silver is 0.23 J/g C, the wiring is at a temperature of 23° C and it absorbs 3.45x103 J of energy.
A 5.00 g calorimeter, c=15.77 J/g °C, is used to measure the heat capacity of an unknown metal. The 8.60 g unknown metal is first placed in a boiling water bath for several minutes then placed in the calorimeter. The calorimeter has 151 g of 23° C water in it. If the final temperature of both the metal and the water is 52° C, calculate the heat capacity of the metal.
How would you work these two problems?
2007-10-12
14:51:14
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1 answers
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asked by
surferchic
2
in
Chemistry