A 100-G Block of Copper Is Taken from a Kiln

question 47

Multiple Choice

A 100-g block of copper is taken from a kiln and quickly placed into a beaker of negligible heat capacity containing 300 g of water.The water temperature rises from 15°C to 40°C.Given c_Cu = 0.10 cal/g·°C,and c_water = 1.00 cal/g·°C,what was the temperature of the kiln?

• A) 500°C
• B) 635°C
• C) 790°C
• D) 535°C

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