A 150-G Block of Copper Is Taken from a Kiln

question 15

Multiple Choice

A 150-g block of copper is taken from a kiln and quickly placed into a beaker of negligible heat capacity containing 500 g of water.The water temperature rises from 10°C to 30°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) 1,363°C
• B) 637°C
• C) 967°C
• D) 697°C
• E) 97°C

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