Find the Minimum Amount of Energy It Takes to Raise

question 38

Multiple Choice

Find the minimum amount of energy it takes to raise 1.00 pound of lead (454 g) from room temperature (25°C) to its melting point (327°C) and then melt it.The specific heat capacity of lead is 0.159 J/(g . °C) ,the enthalpy of fusion is 24.7 J/g,and the molar mass is 207 g/mol.

• A)3390 kJ
• B)21.9 kJ
• C)21.0 kJ
• D)33.0 kJ
• E)11.0 kJ

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Definitions:

Bruce Tuckman

An educational psychologist known for his model describing the stages of group development: forming, storming, norming, performing, and adjourning.

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