A Substance Has a Melting Point of 20°C and a Heat

question 1

Multiple Choice

A substance has a melting point of 20°C and a heat of fusion of .The boiling point is and the heat of vaporization is at a pressure of 1.0 atm.The specific heats for the solid,liquid,and gaseous phases are 600 J/(kg • K) ,1000 J/(kg • K) ,and 400 J/(kg • K) ,respectively.The quantity of heat required to raise the temperature of of the substance from to at a pressure of 1.0 atm,is closest to

• A) 620 kJ.
• B) 470 kJ.
• C) 560 kJ.
• D) 210 kJ.
• E) 770 kJ.

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Definitions:

Analytical

Relating to the systematic examination of the structure of something, typically by separating it into its components to understand its nature or to find patterns.

Logical Problem Solving

The method of using structured reasoning to find solutions to specific issues or challenges.

Strengths-Based Leadership

A leadership approach focusing on identifying and maximizing the strengths of individuals and teams to achieve organizational goals.

Social Leadership

Group-oriented leadership that builds teamwork, mediates conflict, and offers support.