A 1400-G Sample of Water at 25

question 24

Multiple Choice

A 140.0-g sample of water at 25.0°C is mixed with 100.0 g of a certain metal at 100.0°C. After thermal equilibrium is established, the (final) temperature of the mixture is 29.6°C. What is the heat capacity of the metal, assuming it is constant over the temperature range concerned?

• A) 0.031 J/g°C
• B) 0.38 J/g°C
• C) 0.96 J/g°C
• D) 0.76 J/g°C
• E) none of these

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A psychologist known for his theory of cognitive development, suggesting that social interaction plays a fundamental role in the development of cognition.