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Liquid water turns to ice. Is this process endothermic or exothermic? Explain what is occurring using the terms system. surroundings. heat, potential energy. and kinetic energy in the discussion.
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Chemistry: An Atoms First Approach
2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
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BuyFindarrow_forward
Chemistry: An Atoms First Approach
2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 7, Problem 4ALQ
Textbook Problem
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Liquid water turns to ice. Is this process endothermic or exothermic? Explain what is occurring using the terms system. surroundings. heat, potential energy. and kinetic energy in the discussion.
Interpretation Introduction
Interpretation: The process of freezing is exothermic or endothermic to be discussed.
Concept introduction
System: In thermodynamics the system is defined as quantity of matter or region in the universe.
Surrounding: Surrounding is includes everything else around the system in the universe.
Potential energy (U): Potential energy is an energy that is stored in an object not in motion and ability of becoming active.
Example: A ball on the table (having a mass is a potential energy).
Kinetic energy (KE): The energy possessed by an object due to its motion. Kinetic energy depends upon the mass (m) and velocity (v) of an object.
KE=
Heat: Heat is form of energy which can be transferred from one object to another. Heat is measured in the Unit of heat Calories/ Kelvin.
Exothermic reaction: Exothermic reaction is chemical reaction in which heat energy is released.
Endothermic reaction: Endothermic reaction is a chemical reaction in which heat energy is absorbed.
Explanation of Solution
Explanation
To find freezing of water is an endothermic or exothermic
The process of freezing,
Conversion of liquid water into ice is an exothermic reaction in which heat energy is released to surrounding.
The process of melting,
Chapter 7 Solutions
Chemistry: An Atoms First Approach
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