The Enthalpy Change for Converting 1

question 38

Multiple Choice

The enthalpy change for converting 1.00 mol of ice at -50.0 °C to water at 70.0 °C is ________ kJ. The specific heats of ice, water, and steam are 2.09 J g^-1 °C^-1, 4.18 J g^-1 °C^-1, and 1.84 J g^-1 °C^-1, respectively. For H₂O, Δ_fusH = 6.01 kJ mol^-1, and Δ_vapH = 40.67 kJ mol^-1.

• A)12.28
• B)6.41
• C)13.16
• D)7154
• E)9.40

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Definitions:

Isabella of Castile

Queen of Castile from 1474 and, through marriage to Ferdinand II of Aragon, a queen of Aragon, which led to the unification of Spain under their grandson, Charles V.

Ferdinand of Aragon

Was a monarch of the late 15th and early 16th centuries, who, along with his wife Isabella of Castile, is famous for the completion of the Reconquista and the funding of Christopher Columbus's 1492 voyage.

United

Refers to entities or individuals joined together towards a common goal or forming a single entity.

Medieval Weapon

Weapons used during the Middle Ages in Europe, including swords, bows, spears, and various types of siege engines.