When a Metal Object Is Dropped into Cold Water,it Releases

question 20

Multiple Choice

When a metal object is dropped into cold water,it releases 4,715 J of energy to its surroundings,and its temperature decreases from 100.0 °C to 20.0 °C.The mass of the object is 420 grams.What is the specific heat of this material?

• A) 0.561 J/g·°C
• B) 1.58 × 10⁸ J/g·°C
• C) 0.140 J/g·°C
• D) 7.14 J/g·°C

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Definitions:

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