The Heat of Fusion for Lead at 327 °C Is

question 52

Multiple Choice

The heat of fusion for lead at 327 °C is 22.9 kJ/kg and the specific heat of solid lead is 0.130 kJ/kg °C, the specific heat of liquid lead is 0.0900 kJ/kg °C, and the heat of vaporization of lead at 1,620 °C is 871 kJ/kg. What is the energy needed to vaporize 100 grams of lead starting at 0 °C?

• A) 105 kJ
• B) 189 kJ
• C) 176 kJ
• D) 156 kJ
• E) 147 kJ

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Principal

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The power or right to give orders, make decisions, and enforce obedience.

Agency Relationship

A connection between two parties where one, the agent, is authorized to act on behalf of the other, the principal, in dealings with third parties.