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

---

Definitions:

Income Inequality

The uneven distribution of income among individuals in an economy, reflecting varying levels of wealth, wage, and earning disparities.

United States

A country in North America consisting of 50 states and a federal district, known for its economic and military power.

Temporary Assistance

Short-term financial or material support provided to individuals or families in need, often by the government or charitable organizations.

Needy Families

Refers to households lacking sufficient income or resources to meet basic living expenses, such as food, clothing, and shelter.